| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/2019 Y4 | 2019 12 28.59683 | 11 44 23.74 | +30 49 19.4 | 19.6 | o | T08 |
| C/2019 Y4 | 2019 12 28.60029 | 11 44 23.80 | +30 49 22.0 | 19.6 | o | T08 |
| C/2019 Y4 | 2019 12 28.60534 | 11 44 23.83 | +30 49 25.1 | 19.5 | o | T08 |
| C/2019 Y4 | 2019 12 28.60823 | 11 44 24.05 | +30 49 27.0 | 19.3 | o | T08 |
| C/2019 Y4 | 2019 12 28.62320 | 11 44 24.58 | +30 49 38.1 | 19.5 | o | T08 |
| C/2019 Y4 | 2019 12 28.62505 | 11 44 24.54 | +30 49 40.3 | 19.3 | o | T08 |
| C/2019 Y4 | 2019 12 29.00782 | 11 44 37.36 | +30 54 26.9 | 18.7 | V | 033 |
| C/2019 Y4 | 2019 12 29.00862 | 11 44 37.40 | +30 54 27.5 | 18.5 | V | 033 |
| C/2019 Y4 | 2019 12 29.00941 | 11 44 37.43 | +30 54 28.0 | 18.7 | V | 033 |
| C/2019 Y4 | 2019 12 29.01043 | 11 44 37.46 | +30 54 29.0 | 18.7 | V | 033 |
| C/2019 Y4 | 2019 12 29.12709 | 11 44 41.21 | +30 55 58.8 | 19.3 | G | L01 |
| C/2019 Y4 | 2019 12 29.13184 | 11 44 41.39 | +30 56 02.6 | 19.3 | G | L01 |
| C/2019 Y4 | 2019 12 29.17018 | 11 44 42.58 | +30 56 31.9 | 19.5 | G | L01 |
| C/2019 Y4 | 2019 12 29.17175 | 11 44 42.68 | +30 56 32.6 | 19.6 | G | L01 |
| C/2019 Y4 | 2019 12 29.19196 | 11 44 43.30 | +30 56 47.5 | 18.6 | V | 033 |
| C/2019 Y4 | 2019 12 29.19275 | 11 44 43.32 | +30 56 48.0 | 18.6 | V | 033 |
| C/2019 Y4 | 2019 12 29.19354 | 11 44 43.33 | +30 56 48.7 | 19.0 | V | 033 |
| C/2019 Y4 | 2019 12 29.19484 | 11 44 43.38 | +30 56 49.8 | 18.8 | V | 033 |
| C/2019 Y4 | 2019 12 30.23141 | 11 45 16.94 | +31 10 12.6 | 20.1 | G | K87 |
| C/2019 Y4 | 2019 12 30.23558 | 11 45 17.06 | +31 10 15.9 | 20.1 | G | K87 |
| C/2019 Y4 | 2019 12 30.24703 | 11 45 17.48 | +31 10 24.7 | 19.7 | G | K87 |
| C/2019 Y4 | 2019 12 30.52186 | 11 45 26.21 | +31 14 03.6 | H06 | ||
| C/2019 Y4 | 2019 12 30.52641 | 11 45 26.34 | +31 14 06.7 | 19.4 | G | H06 |
| C/2019 Y4 | 2019 12 30.97452 | 11 45 40.71 | +31 20 03.0 | 19.8 | G | 595 |
| C/2019 Y4 | 2019 12 30.99035 | 11 45 41.08 | +31 20 16.4 | 19.7 | G | 595 |
| C/2019 Y4 | 2019 12 30.99321 | 11 45 41.08 | +31 20 17.6 | 18.4 | V | C43 |
| C/2019 Y4 | 2019 12 30.99753 | 11 45 41.29 | +31 20 22.7 | 19.4 | V | C43 |
| C/2019 Y4 | 2019 12 30.99827 | 11 45 41.38 | +31 20 21.6 | 19.5 | G | 595 |
| C/2019 Y4 | 2019 12 31.00176 | 11 45 41.40 | +31 20 25.8 | 19.2 | V | C43 |
| C/2019 Y4 | 2019 12 31.13813 | 11 45 45.57 | +31 22 13.9 | 20.2 | V | 033 |
| C/2019 Y4 | 2019 12 31.13869 | 11 45 45.61 | +31 22 14.5 | 19.9 | V | 033 |
| C/2019 Y4 | 2019 12 31.13925 | 11 45 45.62 | +31 22 14.9 | 19.5 | V | 033 |
| C/2019 Y4 | 2019 12 31.14037 | 11 45 45.67 | +31 22 15.7 | 19.8 | V | 033 |
| C/2019 Y4 | 2019 12 31.19678 | 11 45 47.36 | +31 23 02.5 | 204 | ||
| C/2019 Y4 | 2019 12 31.20806 | 11 45 47.69 | +31 23 11.0 | 204 | ||
| C/2019 Y4 | 2019 12 31.21934 | 11 45 48.02 | +31 23 20.4 | 18.9 | G | 204 |
| C/2019 Y4 | 2019 12 31.36456 | 11 45 52.72 | +31 25 18.6 | 18.8 | R | H06 |
| C/2019 Y4 | 2019 12 31.36585 | 11 45 52.74 | +31 25 19.5 | 19.1 | R | H06 |
| C/2019 Y4 | 2019 12 31.53635 | 11 45 57.84 | +31 27 39.0 | 18.7 | V | H06 |
| C/2019 Y4 | 2019 12 31.73353 | 11 46 04.01 | +31 30 19.0 | 18.1 | R | Q11 |
| C/2019 Y4 | 2019 12 31.74421 | 11 46 04.33 | +31 30 27.7 | Q11 | ||
| C/2019 Y4 | 2019 12 31.75491 | 11 46 04.63 | +31 30 36.6 | Q11 | ||
| C/2019 Y4 | 2020 01 01.06957 | 11 46 14.14 | +31 34 55.2 | 18.6 | R | C10 |
| C/2019 Y4 | 2020 01 01.08333 | 11 46 14.55 | +31 35 06.6 | 18.9 | R | C10 |
| C/2019 Y4 | 2020 01 01.11675 | 11 46 15.53 | +31 35 35.0 | 20.0 | R | K88 |
| C/2019 Y4 | 2020 01 01.11869 | 11 46 15.57 | +31 35 36.1 | 18.8 | R | C10 |
| C/2019 Y4 | 2020 01 01.12098 | 11 46 15.66 | +31 35 38.7 | 20.0 | R | K88 |
| C/2019 Y4 | 2020 01 01.12521 | 11 46 15.81 | +31 35 41.9 | 19.6 | R | K88 |
| C/2019 Y4 | 2020 01 01.13366 | 11 46 16.01 | +31 35 48.9 | 19.1 | R | K88 |
| C/2019 Y4 | 2020 01 01.16012 | 11 46 16.88 | +31 36 11.7 | 18.8 | G | G40 |
| C/2019 Y4 | 2020 01 01.16012 | 11 46 16.88 | +31 36 11.7 | 18.8 | G | G40 |
| C/2019 Y4 | 2020 01 01.17028 | 11 46 17.23 | +31 36 20.3 | 19.3 | G | G40 |
| C/2019 Y4 | 2020 01 01.17028 | 11 46 17.23 | +31 36 20.3 | 19.3 | G | G40 |
| C/2019 Y4 | 2020 01 01.18021 | 11 46 17.46 | +31 36 28.5 | 19.1 | G | G40 |
| C/2019 Y4 | 2020 01 01.18021 | 11 46 17.46 | +31 36 28.5 | 19.1 | G | G40 |
| C/2019 Y4 | 2020 01 01.19469 | 11 46 17.78 | +31 36 39.6 | 18.7 | R | L27 |
| C/2019 Y4 | 2020 01 01.20091 | 11 46 17.95 | +31 36 43.9 | 20.3 | V | 033 |
| C/2019 Y4 | 2020 01 01.20147 | 11 46 17.97 | +31 36 44.4 | 20.2 | V | 033 |
| C/2019 Y4 | 2020 01 01.20204 | 11 46 17.99 | +31 36 44.8 | 20.3 | V | 033 |
| C/2019 Y4 | 2020 01 01.21214 | 11 46 18.31 | +31 36 54.2 | 18.7 | R | L27 |
| C/2019 Y4 | 2020 01 01.22960 | 11 46 18.81 | +31 37 08.8 | 18.8 | R | L27 |
| C/2019 Y4 | 2020 01 01.48856 | 11 46 26.56 | +31 40 44.8 | 19.1 | R | H36 |
| C/2019 Y4 | 2020 01 01.49626 | 11 46 26.79 | +31 40 51.4 | 18.5 | R | H36 |
| C/2019 Y4 | 2020 01 01.50375 | 11 46 27.02 | +31 40 57.7 | 18.4 | R | H36 |
| C/2019 Y4 | 2020 01 01.59986 | 11 46 29.98 | +31 42 19.3 | 20.4 | G | T12 |
| C/2019 Y4 | 2020 01 01.60080 | 11 46 30.01 | +31 42 20.1 | 20.4 | G | T12 |
| C/2019 Y4 | 2020 01 01.60177 | 11 46 30.03 | +31 42 20.9 | 20.5 | G | T12 |
| C/2019 Y4 | 2020 01 01.60276 | 11 46 30.06 | +31 42 21.8 | 20.4 | G | T12 |
| C/2019 Y4 | 2020 01 01.60372 | 11 46 30.09 | +31 42 22.6 | 20.5 | G | T12 |
| C/2019 Y4 | 2020 01 01.62013 | 11 46 30.57 | +31 42 36.9 | 19.6 | o | T08 |
| C/2019 Y4 | 2020 01 01.62341 | 11 46 30.60 | +31 42 39.8 | 19.5 | o | T08 |
| C/2019 Y4 | 2020 01 01.63150 | 11 46 30.87 | +31 42 46.3 | 19.3 | o | T08 |
| C/2019 Y4 | 2020 01 01.64160 | 11 46 31.15 | +31 42 53.9 | 19.4 | o | T08 |
| C/2019 Y4 | 2020 01 01.66206 | 11 46 32.00 | +31 43 10.5 | 18.1 | R | Q11 |
| C/2019 Y4 | 2020 01 01.66784 | 11 46 32.17 | +31 43 15.4 | Q11 | ||
| C/2019 Y4 | 2020 01 01.67401 | 11 46 32.33 | +31 43 20.3 | Q11 | ||
| C/2019 Y4 | 2020 01 02.00133 | 11 46 41.85 | +31 47 55.8 | 20.0 | V | 033 |
| C/2019 Y4 | 2020 01 02.00190 | 11 46 41.86 | +31 47 56.4 | 19.9 | V | 033 |
| C/2019 Y4 | 2020 01 02.00245 | 11 46 41.88 | +31 47 56.7 | 20.1 | V | 033 |
| C/2019 Y4 | 2020 01 02.00850 | 11 46 42.07 | +31 48 02.4 | 246 | ||
| C/2019 Y4 | 2020 01 02.00980 | 11 46 42.13 | +31 48 03.8 | 246 | ||
| C/2019 Y4 | 2020 01 02.01052 | 11 46 42.12 | +31 48 03.9 | 19.4 | G | 246 |
| C/2019 Y4 | 2020 01 02.01115 | 11 46 42.16 | +31 48 05.5 | 246 | ||
| C/2019 Y4 | 2020 01 02.01185 | 11 46 42.22 | +31 48 05.6 | 246 | ||
| C/2019 Y4 | 2020 01 02.01361 | 11 46 42.22 | +31 48 06.9 | 246 | ||
| C/2019 Y4 | 2020 01 02.01491 | 11 46 42.27 | +31 48 08.0 | 246 | ||
| C/2019 Y4 | 2020 01 02.01635 | 11 46 42.32 | +31 48 08.2 | 246 | ||
| C/2019 Y4 | 2020 01 02.06213 | 11 46 43.59 | +31 48 47.6 | 18.9 | G | K38 |
| C/2019 Y4 | 2020 01 02.06547 | 11 46 43.71 | +31 48 50.8 | 19.4 | G | L06 |
| C/2019 Y4 | 2020 01 02.07647 | 11 46 44.01 | +31 49 00.4 | 19.5 | G | L06 |
| C/2019 Y4 | 2020 01 02.07738 | 11 46 44.03 | +31 49 00.7 | 18.9 | G | K38 |
| C/2019 Y4 | 2020 01 02.07741 | 11 46 44.03 | +31 49 01.8 | 20.3 | R | K88 |
| C/2019 Y4 | 2020 01 02.08586 | 11 46 44.27 | +31 49 09.0 | 19.9 | R | K88 |
| C/2019 Y4 | 2020 01 02.08746 | 11 46 44.33 | +31 49 09.7 | 19.4 | G | L06 |
| C/2019 Y4 | 2020 01 02.09264 | 11 46 44.41 | +31 49 14.4 | 18.9 | G | K38 |
| C/2019 Y4 | 2020 01 02.09431 | 11 46 44.50 | +31 49 16.2 | 20.0 | R | K88 |
| C/2019 Y4 | 2020 01 02.14388 | 11 46 45.86 | +31 49 57.4 | 19.7 | V | 033 |
| C/2019 Y4 | 2020 01 02.14444 | 11 46 45.88 | +31 49 58.2 | 19.5 | V | 033 |
| C/2019 Y4 | 2020 01 02.14500 | 11 46 45.89 | +31 49 58.4 | 19.3 | V | 033 |
| C/2019 Y4 | 2020 01 02.14561 | 11 46 45.88 | +31 49 59.1 | 19.3 | V | 033 |
| C/2019 Y4 | 2020 01 02.82876 | 11 47 05.70 | +31 59 48.0 | 19.4 | R | C42 |
| C/2019 Y4 | 2020 01 02.84017 | 11 47 06.02 | +31 59 59.8 | 19.2 | R | C42 |
| C/2019 Y4 | 2020 01 02.85162 | 11 47 06.41 | +32 00 09.4 | 19.5 | R | C42 |
| C/2019 Y4 | 2020 01 03.03362 | 11 47 11.40 | +32 02 46.9 | 19.2 | V | A71 |
| C/2019 Y4 | 2020 01 03.04456 | 11 47 11.69 | +32 02 55.6 | 19.3 | V | A71 |
| C/2019 Y4 | 2020 01 03.05561 | 11 47 11.97 | +32 03 06.2 | 19.1 | V | A71 |
| C/2019 Y4 | 2020 01 03.21745 | 11 47 16.37 | +32 05 27.9 | 18.7 | G | I89 |
| C/2019 Y4 | 2020 01 03.22669 | 11 47 16.66 | +32 05 35.8 | 18.6 | G | I89 |
| C/2019 Y4 | 2020 01 03.43289 | 11 47 22.45 | +32 08 38.2 | 18.8 | G | I52 |
| C/2019 Y4 | 2020 01 03.45047 | 11 47 22.98 | +32 08 53.6 | 18.9 | G | I52 |
| C/2019 Y4 | 2020 01 03.46188 | 11 47 23.29 | +32 09 03.8 | 19.2 | G | G96 |
| C/2019 Y4 | 2020 01 03.46707 | 11 47 23.42 | +32 09 08.2 | 18.9 | G | G96 |
| C/2019 Y4 | 2020 01 03.47225 | 11 47 23.57 | +32 09 12.7 | 19.1 | G | G96 |
| C/2019 Y4 | 2020 01 03.47744 | 11 47 23.67 | +32 09 17.2 | 18.9 | G | G96 |
| C/2019 Y4 | 2020 01 03.73085 | 11 47 30.71 | +32 13 02.2 | Q11 | ||
| C/2019 Y4 | 2020 01 03.73622 | 11 47 30.86 | +32 13 07.1 | Q11 | ||
| C/2019 Y4 | 2020 01 03.74156 | 11 47 31.00 | +32 13 11.7 | 18.2 | R | Q11 |
| C/2019 Y4 | 2020 01 04.11613 | 11 47 41.13 | +32 18 45.5 | 20.4 | V | 033 |
| C/2019 Y4 | 2020 01 04.11670 | 11 47 41.14 | +32 18 46.5 | 20.2 | V | 033 |
| C/2019 Y4 | 2020 01 04.11726 | 11 47 41.14 | +32 18 46.4 | 20.1 | V | 033 |
| C/2019 Y4 | 2020 01 04.44730 | 11 47 50.03 | +32 23 46.7 | H06 | ||
| C/2019 Y4 | 2020 01 04.45003 | 11 47 50.10 | +32 23 49.4 | H06 | ||
| C/2019 Y4 | 2020 01 04.45275 | 11 47 50.18 | +32 23 51.5 | 18.9 | G | H06 |
| C/2019 Y4 | 2020 01 04.69645 | 11 47 56.68 | +32 27 33.1 | Q11 | ||
| C/2019 Y4 | 2020 01 04.70342 | 11 47 56.85 | +32 27 39.3 | 18.2 | R | Q11 |
| C/2019 Y4 | 2020 01 04.71092 | 11 47 57.03 | +32 27 46.1 | Q11 | ||
| C/2019 Y4 | 2020 01 04.98497 | 11 48 04.22 | +32 31 55.9 | 20.6 | V | 033 |
| C/2019 Y4 | 2020 01 04.98552 | 11 48 04.24 | +32 31 57.0 | 19.5 | V | 033 |
| C/2019 Y4 | 2020 01 05.12947 | 11 48 07.83 | +32 34 11.4 | 18.8 | R | 157 |
| C/2019 Y4 | 2020 01 05.13946 | 11 48 08.11 | +32 34 20.5 | 18.8 | R | 157 |
| C/2019 Y4 | 2020 01 05.14892 | 11 48 08.34 | +32 34 29.7 | 18.6 | R | 157 |
| C/2019 Y4 | 2020 01 05.35141 | 11 48 13.79 | +32 37 37.8 | 18.7 | G | 703 |
| C/2019 Y4 | 2020 01 05.35686 | 11 48 13.83 | +32 37 42.2 | 18.4 | G | 703 |
| C/2019 Y4 | 2020 01 05.36230 | 11 48 14.01 | +32 37 47.5 | 18.6 | G | 703 |
| C/2019 Y4 | 2020 01 05.36775 | 11 48 14.02 | +32 37 52.9 | 18.5 | G | 703 |
| C/2019 Y4 | 2020 01 05.73106 | 11 48 23.27 | +32 43 32.9 | Q11 | ||
| C/2019 Y4 | 2020 01 05.73746 | 11 48 23.42 | +32 43 38.8 | 18.1 | R | Q11 |
| C/2019 Y4 | 2020 01 05.74333 | 11 48 23.55 | +32 43 44.2 | Q11 | ||
| C/2019 Y4 | 2020 01 06.01417 | 11 48 30.32 | +32 47 58.2 | 19.5 | V | A71 |
| C/2019 Y4 | 2020 01 06.02545 | 11 48 30.61 | +32 48 09.2 | 118 | ||
| C/2019 Y4 | 2020 01 06.02733 | 11 48 30.67 | +32 48 11.4 | 19.1 | V | A71 |
| C/2019 Y4 | 2020 01 06.03467 | 11 48 30.89 | +32 48 18.6 | 19.1 | G | 203 |
| C/2019 Y4 | 2020 01 06.03855 | 11 48 30.92 | +32 48 21.8 | 118 | ||
| C/2019 Y4 | 2020 01 06.04049 | 11 48 31.03 | +32 48 23.2 | 18.9 | V | A71 |
| C/2019 Y4 | 2020 01 06.05166 | 11 48 31.24 | +32 48 34.3 | 118 | ||
| C/2019 Y4 | 2020 01 06.05513 | 11 48 31.36 | +32 48 37.9 | 19.3 | V | A71 |
| C/2019 Y4 | 2020 01 06.05515 | 11 48 31.36 | +32 48 37.7 | 18.6 | G | 203 |
| C/2019 Y4 | 2020 01 06.06142 | 11 48 31.50 | +32 48 43.5 | 19.1 | R | K88 |
| C/2019 Y4 | 2020 01 06.06788 | 11 48 31.65 | +32 48 49.8 | 19.3 | R | K88 |
| C/2019 Y4 | 2020 01 06.07434 | 11 48 31.81 | +32 48 56.7 | 19.2 | R | K88 |
| C/2019 Y4 | 2020 01 06.17230 | 11 48 34.16 | +32 50 29.7 | 18.7 | G | I89 |
| C/2019 Y4 | 2020 01 06.17591 | 11 48 34.32 | +32 50 32.6 | 19.0 | G | I89 |
| C/2019 Y4 | 2020 01 06.18106 | 11 48 34.40 | +32 50 37.7 | 19.0 | G | I89 |
| C/2019 Y4 | 2020 01 06.18791 | 11 48 34.57 | +32 50 44.3 | 18.6 | G | I89 |
| C/2019 Y4 | 2020 01 06.39432 | 11 48 39.71 | +32 54 01.9 | 18.9 | G | I52 |
| C/2019 Y4 | 2020 01 06.40331 | 11 48 39.91 | +32 54 10.5 | 19.1 | G | I52 |
| C/2019 Y4 | 2020 01 06.40744 | 11 48 40.01 | +32 54 13.7 | 18.2 | G | I52 |
| C/2019 Y4 | 2020 01 06.41557 | 11 48 40.26 | +32 54 20.9 | I52 | ||
| C/2019 Y4 | 2020 01 06.97016 | 11 48 53.42 | +33 03 17.9 | C42 | ||
| C/2019 Y4 | 2020 01 06.98144 | 11 48 53.65 | +33 03 28.4 | C42 | ||
| C/2019 Y4 | 2020 01 06.99271 | 11 48 53.88 | +33 03 39.5 | C42 | ||
| C/2019 Y4 | 2020 01 06.99734 | 11 48 54.17 | +33 03 41.9 | 246 | ||
| C/2019 Y4 | 2020 01 06.99785 | 11 48 54.19 | +33 03 42.3 | 246 | ||
| C/2019 Y4 | 2020 01 06.99890 | 11 48 54.14 | +33 03 43.1 | 246 | ||
| C/2019 Y4 | 2020 01 06.99914 | 11 48 54.08 | +33 03 43.2 | 246 | ||
| C/2019 Y4 | 2020 01 07.00398 | 11 48 54.17 | +33 03 50.6 | C42 | ||
| C/2019 Y4 | 2020 01 07.02320 | 11 48 54.75 | +33 04 06.5 | 19.3 | G | Z99 |
| C/2019 Y4 | 2020 01 07.02733 | 11 48 54.85 | +33 04 10.2 | 19.3 | G | Z99 |
| C/2019 Y4 | 2020 01 07.03141 | 11 48 54.95 | +33 04 14.2 | 18.9 | G | Z99 |
| C/2019 Y4 | 2020 01 07.38271 | 11 49 03.22 | +33 09 59.0 | 20.0 | G | I52 |
| C/2019 Y4 | 2020 01 07.38636 | 11 49 03.32 | +33 10 02.8 | 18.7 | G | I52 |
| C/2019 Y4 | 2020 01 07.39001 | 11 49 03.39 | +33 10 06.5 | 19.1 | G | I52 |
| C/2019 Y4 | 2020 01 07.39372 | 11 49 03.45 | +33 10 10.2 | 19.1 | G | I52 |
| C/2019 Y4 | 2020 01 08.21206 | 11 49 21.74 | +33 23 42.7 | 19.4 | V | A77 |
| C/2019 Y4 | 2020 01 08.21964 | 11 49 21.97 | +33 23 51.0 | 19.2 | V | A77 |
| C/2019 Y4 | 2020 01 08.22722 | 11 49 22.10 | +33 23 58.2 | 18.7 | V | A77 |
| C/2019 Y4 | 2020 01 09.17943 | 11 49 42.66 | +33 40 06.5 | 18.7 | V | G40 |
| C/2019 Y4 | 2020 01 09.19470 | 11 49 42.97 | +33 40 22.0 | 18.8 | V | G40 |
| C/2019 Y4 | 2020 01 09.20850 | 11 49 43.21 | +33 40 36.5 | 18.8 | V | G40 |
| C/2019 Y4 | 2020 01 09.38304 | 11 49 46.67 | +33 43 34.3 | 19.3 | V | 449 |
| C/2019 Y4 | 2020 01 09.40720 | 11 49 47.33 | +33 44 00.6 | 19.0 | V | 449 |
| C/2019 Y4 | 2020 01 17.03374 | 11 51 42.40 | +36 08 53.3 | 18.8 | G | 204 |
| C/2019 Y4 | 2020 01 17.05717 | 11 51 42.58 | +36 09 22.9 | 204 | ||
| C/2019 Y4 | 2020 01 20.97780 | 11 52 03.53 | +37 34 52.0 | 204 | ||
| C/2019 Y4 | 2020 01 20.98278 | 11 52 03.57 | +37 34 58.7 | 204 | ||
| C/2019 Y4 | 2020 01 20.98579 | 11 52 03.54 | +37 35 02.5 | 18.8 | G | 204 |
| C/2019 Y4 | 2020 01 28.35301 | 11 51 13.47 | +40 37 02.6 | 18.3 | V | 850 |
| C/2019 Y4 | 2020 01 28.37099 | 11 51 13.13 | +40 37 31.3 | 18.3 | V | 850 |
| C/2019 Y4 | 2020 01 28.38929 | 11 51 12.79 | +40 38 00.8 | 18.2 | V | 850 |
| C/2019 Y4 | 2020 01 28.40728 | 11 51 12.48 | +40 38 29.4 | 18.2 | V | 850 |
| C/2019 Y4 | 2020 02 01.53461 | 11 49 42.10 | +42 32 50.1 | 19.5 | G | 568 |
| C/2019 Y4 | 2020 02 01.53544 | 11 49 42.08 | +42 32 51.5 | 19.4 | G | 568 |
| C/2019 Y4 | 2020 02 01.53633 | 11 49 42.04 | +42 32 53.1 | 19.5 | G | 568 |
| C/2019 Y4 | 2020 02 01.53720 | 11 49 42.02 | +42 32 54.5 | 19.4 | G | 568 |
| C/2019 Y4 | 2020 02 02.03475 | 11 49 27.68 | +42 47 12.9 | 16.8 | R | I81 |
| C/2019 Y4 | 2020 02 02.03758 | 11 49 27.59 | +42 47 18.1 | 16.7 | R | I81 |
| C/2019 Y4 | 2020 02 02.04332 | 11 49 27.38 | +42 47 27.8 | 16.8 | R | I81 |
| C/2019 Y4 | 2020 02 02.04762 | 11 49 27.25 | +42 47 35.5 | 16.7 | R | I81 |
| C/2019 Y4 | 2020 02 02.11053 | 11 49 25.25 | +42 49 27.2 | 17.3 | V | A77 |
| C/2019 Y4 | 2020 02 02.11520 | 11 49 25.08 | +42 49 35.6 | 17.3 | V | A77 |
| C/2019 Y4 | 2020 02 02.11988 | 11 49 24.89 | +42 49 43.8 | 18.0 | V | A77 |
| C/2019 Y4 | 2020 02 03.32600 | 11 48 46.45 | +43 25 06.7 | 16.7 | G | 703 |
| C/2019 Y4 | 2020 02 03.33142 | 11 48 46.26 | +43 25 16.5 | 16.6 | G | 703 |
| C/2019 Y4 | 2020 02 03.33685 | 11 48 46.03 | +43 25 26.1 | 16.6 | G | 703 |
| C/2019 Y4 | 2020 02 03.34227 | 11 48 45.84 | +43 25 35.7 | 16.7 | G | 703 |
| C/2019 Y4 | 2020 02 03.56178 | 11 48 38.08 | +43 32 09.2 | 16.8 | o | T08 |
| C/2019 Y4 | 2020 02 03.56748 | 11 48 37.87 | +43 32 19.7 | 17.5 | o | T08 |
| C/2019 Y4 | 2020 02 03.57179 | 11 48 37.69 | +43 32 27.3 | 16.7 | o | T08 |
| C/2019 Y4 | 2020 02 03.58601 | 11 48 37.17 | +43 32 52.7 | 16.8 | o | T08 |
| C/2019 Y4 | 2020 02 03.88167 | 11 48 27.19 | +43 41 35.8 | 16.9 | N | I72 |
| C/2019 Y4 | 2020 02 03.90817 | 11 48 26.19 | +43 42 23.7 | 17.1 | N | I72 |
| C/2019 Y4 | 2020 02 03.93450 | 11 48 25.19 | +43 43 11.1 | 17.0 | N | I72 |
| C/2019 Y4 | 2020 02 05.48353 | 11 47 24.56 | +44 30 15.0 | 16.5 | o | T05 |
| C/2019 Y4 | 2020 02 05.48684 | 11 47 24.44 | +44 30 21.3 | 16.7 | o | T05 |
| C/2019 Y4 | 2020 02 05.49354 | 11 47 24.15 | +44 30 33.6 | 17.4 | o | T05 |
| C/2019 Y4 | 2020 02 05.50306 | 11 47 23.72 | +44 30 51.9 | 17.1 | i | F51 |
| C/2019 Y4 | 2020 02 05.50856 | 11 47 23.47 | +44 31 01.4 | 16.6 | o | T05 |
| C/2019 Y4 | 2020 02 05.51663 | 11 47 23.14 | +44 31 16.5 | 17.4 | i | F51 |
| C/2019 Y4 | 2020 02 05.53105 | 11 47 22.49 | +44 31 43.0 | 17.4 | i | F51 |
| C/2019 Y4 | 2020 02 05.54417 | 11 47 21.89 | +44 32 07.2 | 17.3 | i | F51 |
| C/2019 Y4 | 2020 02 06.00361 | 11 47 02.28 | +44 46 14.7 | 17.5 | V | A71 |
| C/2019 Y4 | 2020 02 06.01254 | 11 47 01.85 | +44 46 31.5 | 17.8 | V | A71 |
| C/2019 Y4 | 2020 02 06.02133 | 11 47 01.43 | +44 46 47.1 | 17.5 | V | A71 |
| C/2019 Y4 | 2020 02 06.03057 | 11 47 01.04 | +44 47 04.6 | 17.3 | V | A71 |
| C/2019 Y4 | 2020 02 06.04054 | 11 47 00.58 | +44 47 23.2 | 17.4 | V | A71 |
| C/2019 Y4 | 2020 02 06.04940 | 11 47 00.15 | +44 47 39.9 | 17.4 | V | A71 |
| C/2019 Y4 | 2020 02 06.05827 | 11 46 59.74 | +44 47 56.2 | 17.6 | V | A71 |
| C/2019 Y4 | 2020 02 06.29183 | 11 46 49.63 | +44 55 11.2 | 16.8 | G | G96 |
| C/2019 Y4 | 2020 02 06.29811 | 11 46 49.33 | +44 55 23.1 | 16.8 | G | G96 |
| C/2019 Y4 | 2020 02 06.30332 | 11 46 49.08 | +44 55 32.8 | 16.8 | G | G96 |
| C/2019 Y4 | 2020 02 06.30852 | 11 46 48.84 | +44 55 42.6 | 16.8 | G | G96 |
| C/2019 Y4 | 2020 02 07.04444 | 11 46 14.47 | +45 18 41.8 | 16.9 | G | C23 |
| C/2019 Y4 | 2020 02 07.04732 | 11 46 14.38 | +45 18 47.3 | 17.1 | G | C23 |
| C/2019 Y4 | 2020 02 07.05165 | 11 46 14.15 | +45 18 55.6 | 17.1 | G | C23 |
| C/2019 Y4 | 2020 02 10.68446 | 11 42 52.02 | +47 16 03.6 | 15.5 | T | 349 |
| C/2019 Y4 | 2020 02 10.69954 | 11 42 51.00 | +47 16 33.4 | 349 | ||
| C/2019 Y4 | 2020 02 10.71462 | 11 42 50.01 | +47 17 03.5 | 349 | ||
| C/2019 Y4 | 2020 02 14.00648 | 11 38 53.06 | +49 07 48.1 | 15.8 | R | I81 |
| C/2019 Y4 | 2020 02 14.01003 | 11 38 52.77 | +49 07 55.4 | 15.9 | R | I81 |
| C/2019 Y4 | 2020 02 14.01359 | 11 38 52.45 | +49 08 02.2 | 16.0 | R | I81 |
| C/2019 Y4 | 2020 02 14.31949 | 11 38 27.56 | +49 18 34.0 | 15.9 | G | 703 |
| C/2019 Y4 | 2020 02 14.32485 | 11 38 27.11 | +49 18 45.2 | 15.9 | G | 703 |
| C/2019 Y4 | 2020 02 14.33020 | 11 38 26.63 | +49 18 56.2 | 15.9 | G | 703 |
| C/2019 Y4 | 2020 02 14.33555 | 11 38 26.02 | +49 19 08.3 | 15.8 | G | 703 |
| C/2019 Y4 | 2020 02 14.89177 | 11 37 39.84 | +49 38 14.2 | 16.6 | V | G20 |
| C/2019 Y4 | 2020 02 14.90420 | 11 37 38.76 | +49 38 40.5 | 16.4 | V | G20 |
| C/2019 Y4 | 2020 02 14.91446 | 11 37 37.86 | +49 39 01.8 | 16.4 | V | G20 |
| C/2019 Y4 | 2020 02 15.82113 | 11 36 17.89 | +50 10 26.3 | 16.4 | R | 215 |
| C/2019 Y4 | 2020 02 15.82242 | 11 36 17.78 | +50 10 29.1 | 16.4 | R | 215 |
| C/2019 Y4 | 2020 02 15.82370 | 11 36 17.66 | +50 10 31.7 | 16.3 | R | 215 |
| C/2019 Y4 | 2020 02 15.85441 | 11 36 14.79 | +50 11 36.6 | 16.4 | V | A71 |
| C/2019 Y4 | 2020 02 15.86485 | 11 36 13.86 | +50 11 58.6 | 16.5 | V | A71 |
| C/2019 Y4 | 2020 02 15.87528 | 11 36 12.85 | +50 12 20.7 | 16.6 | V | A71 |
| C/2019 Y4 | 2020 02 15.88572 | 11 36 11.87 | +50 12 42.2 | 16.4 | V | A71 |
| C/2019 Y4 | 2020 02 15.89824 | 11 36 10.74 | +50 13 08.7 | 16.3 | V | A71 |
| C/2019 Y4 | 2020 02 15.99738 | 11 36 01.51 | +50 16 38.4 | 16.1 | N | 157 |
| C/2019 Y4 | 2020 02 16.00054 | 11 36 01.22 | +50 16 44.8 | 16.2 | N | 157 |
| C/2019 Y4 | 2020 02 16.00369 | 11 36 00.92 | +50 16 51.9 | 16.2 | N | 157 |
| C/2019 Y4 | 2020 02 16.00685 | 11 36 00.60 | +50 16 58.1 | 16.1 | N | 157 |
| C/2019 Y4 | 2020 02 16.01000 | 11 36 00.32 | +50 17 04.8 | 16.2 | N | 157 |
| C/2019 Y4 | 2020 02 16.01105 | 11 36 00.23 | +50 17 07.2 | 16.2 | N | 157 |
| C/2019 Y4 | 2020 02 16.01631 | 11 35 59.72 | +50 17 18.1 | 16.1 | N | 157 |
| C/2019 Y4 | 2020 02 16.01947 | 11 35 59.43 | +50 17 24.5 | 16.1 | N | 157 |
| C/2019 Y4 | 2020 02 16.01959 | 11 35 59.47 | +50 17 22.9 | 15.9 | R | I81 |
| C/2019 Y4 | 2020 02 16.02243 | 11 35 59.21 | +50 17 29.0 | 15.8 | R | I81 |
| C/2019 Y4 | 2020 02 16.02530 | 11 35 58.94 | +50 17 34.7 | 15.8 | R | I81 |
| C/2019 Y4 | 2020 02 16.02817 | 11 35 58.73 | +50 17 41.6 | 15.9 | R | I81 |
| C/2019 Y4 | 2020 02 16.29417 | 11 35 34.01 | +50 26 59.9 | 15.5 | R | H06 |
| C/2019 Y4 | 2020 02 16.29598 | 11 35 33.81 | +50 27 03.5 | 15.5 | R | H06 |
| C/2019 Y4 | 2020 02 16.29779 | 11 35 33.65 | +50 27 07.1 | 15.5 | R | H06 |
| C/2019 Y4 | 2020 02 17.00435 | 11 34 25.86 | +50 51 50.8 | 15.8 | G | Z80 |
| C/2019 Y4 | 2020 02 17.01742 | 11 34 24.58 | +50 52 18.6 | 15.8 | G | Z80 |
| C/2019 Y4 | 2020 02 17.29088 | 11 33 57.68 | +51 01 56.7 | 15.5 | G | 703 |
| C/2019 Y4 | 2020 02 17.29627 | 11 33 57.13 | +51 02 08.3 | 15.5 | G | 703 |
| C/2019 Y4 | 2020 02 17.30167 | 11 33 56.57 | +51 02 19.8 | 15.5 | G | 703 |
| C/2019 Y4 | 2020 02 17.30707 | 11 33 56.01 | +51 02 31.2 | 15.5 | G | 703 |
| C/2019 Y4 | 2020 02 18.05091 | 11 32 39.70 | +51 28 44.2 | 15.7 | G | Z80 |
| C/2019 Y4 | 2020 02 18.05548 | 11 32 39.25 | +51 28 53.9 | 15.7 | G | Z80 |
| C/2019 Y4 | 2020 02 18.29476 | 11 32 14.26 | +51 37 24.0 | 15.9 | N | H06 |
| C/2019 Y4 | 2020 02 18.29964 | 11 32 13.67 | +51 37 35.2 | 15.9 | N | H06 |
| C/2019 Y4 | 2020 02 18.31228 | 11 32 12.31 | +51 38 02.0 | 15.9 | N | H06 |
| C/2019 Y4 | 2020 02 18.71427 | 11 31 28.70 | +51 52 17.5 | Q11 | ||
| C/2019 Y4 | 2020 02 18.71865 | 11 31 28.22 | +51 52 26.9 | Q11 | ||
| C/2019 Y4 | 2020 02 18.72730 | 11 31 27.26 | +51 52 45.2 | 13.1 | T | Q11 |
| C/2019 Y4 | 2020 02 18.84907 | 11 31 14.53 | +51 57 02.3 | 14.1 | T | A77 |
| C/2019 Y4 | 2020 02 18.85729 | 11 31 13.63 | +51 57 20.5 | 15.9 | V | A77 |
| C/2019 Y4 | 2020 02 18.86551 | 11 31 12.69 | +51 57 38.6 | 15.9 | V | A77 |
| C/2019 Y4 | 2020 02 18.87135 | 11 31 12.02 | +51 57 49.3 | 15.6 | R | 178 |
| C/2019 Y4 | 2020 02 18.88640 | 11 31 10.42 | +51 58 21.7 | 15.2 | R | 178 |
| C/2019 Y4 | 2020 02 18.97886 | 11 31 00.24 | +52 01 40.8 | 17.1 | G | Z17 |
| C/2019 Y4 | 2020 02 18.98150 | 11 30 59.94 | +52 01 46.6 | 17.1 | G | Z17 |
| C/2019 Y4 | 2020 02 18.98416 | 11 30 59.63 | +52 01 52.4 | 17.0 | G | Z17 |
| C/2019 Y4 | 2020 02 18.98680 | 11 30 59.33 | +52 01 58.0 | 17.2 | G | Z17 |
| C/2019 Y4 | 2020 02 19.00770 | 11 30 56.53 | +52 02 41.4 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.00851 | 11 30 56.41 | +52 02 42.7 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.00910 | 11 30 56.34 | +52 02 44.6 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.00980 | 11 30 56.29 | +52 02 46.5 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01053 | 11 30 56.18 | +52 02 47.7 | 15.3 | R | 585 |
| C/2019 Y4 | 2020 02 19.01132 | 11 30 56.10 | +52 02 49.2 | 15.3 | R | 585 |
| C/2019 Y4 | 2020 02 19.01199 | 11 30 56.02 | +52 02 50.6 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01265 | 11 30 55.94 | +52 02 52.2 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01343 | 11 30 55.84 | +52 02 53.8 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01424 | 11 30 55.78 | +52 02 55.1 | 15.3 | R | 585 |
| C/2019 Y4 | 2020 02 19.01478 | 11 30 55.76 | +52 02 55.8 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01554 | 11 30 55.60 | +52 02 58.3 | 15.5 | R | 585 |
| C/2019 Y4 | 2020 02 19.01625 | 11 30 55.52 | +52 02 59.7 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01698 | 11 30 55.44 | +52 03 01.2 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01771 | 11 30 55.38 | +52 03 02.9 | 15.5 | R | 585 |
| C/2019 Y4 | 2020 02 19.01843 | 11 30 55.29 | +52 03 04.3 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01916 | 11 30 55.20 | +52 03 05.8 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.01987 | 11 30 55.12 | +52 03 07.2 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.02059 | 11 30 55.04 | +52 03 08.8 | 15.3 | R | 585 |
| C/2019 Y4 | 2020 02 19.02132 | 11 30 54.96 | +52 03 10.4 | 15.3 | R | 585 |
| C/2019 Y4 | 2020 02 19.02204 | 11 30 54.88 | +52 03 11.9 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.02275 | 11 30 54.79 | +52 03 13.3 | 15.4 | R | 585 |
| C/2019 Y4 | 2020 02 19.04337 | 11 30 52.61 | +52 03 56.5 | 15.6 | G | Z80 |
| C/2019 Y4 | 2020 02 19.05311 | 11 30 51.48 | +52 04 17.4 | 15.6 | G | Z80 |
| C/2019 Y4 | 2020 02 19.11296 | 11 30 44.75 | +52 06 25.5 | 15.4 | R | I81 |
| C/2019 Y4 | 2020 02 19.11662 | 11 30 44.35 | +52 06 33.4 | 15.5 | R | I81 |
| C/2019 Y4 | 2020 02 19.11945 | 11 30 44.06 | +52 06 39.2 | 15.5 | R | I81 |
| C/2019 Y4 | 2020 02 19.12231 | 11 30 43.65 | +52 06 45.1 | 15.4 | R | I81 |
| C/2019 Y4 | 2020 02 19.12662 | 11 30 43.19 | +52 06 54.4 | 15.5 | R | I81 |
| C/2019 Y4 | 2020 02 19.13237 | 11 30 42.48 | +52 07 07.2 | 15.4 | R | I81 |
| C/2019 Y4 | 2020 02 19.18918 | 11 30 36.00 | +52 09 10.8 | 15.2 | G | G40 |
| C/2019 Y4 | 2020 02 19.19486 | 11 30 35.35 | +52 09 22.5 | 15.3 | G | G40 |
| C/2019 Y4 | 2020 02 19.20043 | 11 30 34.70 | +52 09 34.3 | 15.3 | G | G40 |
| C/2019 Y4 | 2020 02 19.92340 | 11 29 12.43 | +52 35 18.4 | 16.2 | V | G20 |
| C/2019 Y4 | 2020 02 19.93779 | 11 29 10.65 | +52 35 49.7 | 16.0 | V | G20 |
| C/2019 Y4 | 2020 02 19.93976 | 11 29 10.53 | +52 35 53.5 | 15.8 | N | J01 |
| C/2019 Y4 | 2020 02 19.94422 | 11 29 10.00 | +52 36 03.1 | 15.8 | N | J01 |
| C/2019 Y4 | 2020 02 19.95158 | 11 29 09.04 | +52 36 19.0 | 16.2 | V | G20 |
| C/2019 Y4 | 2020 02 19.95760 | 11 29 08.38 | +52 36 32.8 | 15.8 | N | J01 |
| C/2019 Y4 | 2020 02 19.97629 | 11 29 06.04 | +52 37 11.4 | 15.3 | R | I81 |
| C/2019 Y4 | 2020 02 19.97988 | 11 29 05.60 | +52 37 19.2 | 15.4 | R | I81 |
| C/2019 Y4 | 2020 02 19.98348 | 11 29 05.16 | +52 37 26.8 | 15.5 | R | I81 |
| C/2019 Y4 | 2020 02 20.04891 | 11 28 57.24 | +52 39 48.8 | 15.5 | N | L27 |
| C/2019 Y4 | 2020 02 20.07995 | 11 28 53.29 | +52 40 51.8 | 14.4 | T | L27 |
| C/2019 Y4 | 2020 02 20.08013 | 11 28 53.47 | +52 40 55.9 | 15.5 | N | L27 |
| C/2019 Y4 | 2020 02 20.11203 | 11 28 49.47 | +52 42 03.5 | 15.6 | N | L27 |
| C/2019 Y4 | 2020 02 20.37689 | 11 28 18.01 | +52 51 33.2 | 15.6 | N | H06 |
| C/2019 Y4 | 2020 02 20.38185 | 11 28 17.44 | +52 51 43.6 | 15.7 | N | H06 |
| C/2019 Y4 | 2020 02 20.38948 | 11 28 16.42 | +52 52 00.5 | 15.7 | N | H06 |
| C/2019 Y4 | 2020 02 20.49604 | 11 28 04.19 | +52 55 46.3 | D95 | ||
| C/2019 Y4 | 2020 02 20.50249 | 11 28 03.38 | +52 56 00.3 | D95 | ||
| C/2019 Y4 | 2020 02 20.51646 | 11 28 01.67 | +52 56 30.6 | 13.1 | T | D95 |
| C/2019 Y4 | 2020 02 20.85719 | 11 27 19.91 | +53 08 41.2 | 15.8 | N | Z50 |
| C/2019 Y4 | 2020 02 20.86265 | 11 27 19.22 | +53 08 52.9 | 15.8 | N | Z50 |
| C/2019 Y4 | 2020 02 20.86697 | 11 27 18.67 | +53 09 02.5 | 16.0 | N | Z50 |
| C/2019 Y4 | 2020 02 20.92669 | 11 27 11.26 | +53 11 12.1 | 15.8 | N | Z39 |
| C/2019 Y4 | 2020 02 20.93022 | 11 27 10.83 | +53 11 20.1 | 15.7 | N | Z39 |
| C/2019 Y4 | 2020 02 20.93497 | 11 27 10.25 | +53 11 30.4 | 15.7 | N | Z39 |
| C/2019 Y4 | 2020 02 20.93799 | 11 27 09.49 | +53 11 37.5 | 16.6 | N | L04 |
| C/2019 Y4 | 2020 02 20.94226 | 11 27 09.12 | +53 11 46.1 | 15.7 | G | B70 |
| C/2019 Y4 | 2020 02 20.94353 | 11 27 08.79 | +53 11 49.1 | 16.5 | N | L04 |
| C/2019 Y4 | 2020 02 20.94986 | 11 27 07.99 | +53 12 03.2 | 16.4 | N | L04 |
| C/2019 Y4 | 2020 02 20.95112 | 11 27 08.00 | +53 12 05.3 | 15.7 | G | B70 |
| C/2019 Y4 | 2020 02 20.96016 | 11 27 06.84 | +53 12 24.8 | 15.6 | G | B70 |
| C/2019 Y4 | 2020 02 20.99541 | 11 27 02.28 | +53 13 40.7 | 16.4 | G | 130 |
| C/2019 Y4 | 2020 02 20.99647 | 11 27 02.11 | +53 13 43.2 | 16.6 | G | 130 |
| C/2019 Y4 | 2020 02 20.99780 | 11 27 01.97 | +53 13 46.1 | 16.4 | G | 130 |
| C/2019 Y4 | 2020 02 20.99939 | 11 27 01.73 | +53 13 49.3 | 16.5 | G | 130 |
| C/2019 Y4 | 2020 02 21.04652 | 11 26 55.84 | +53 15 29.7 | 15.5 | R | I81 |
| C/2019 Y4 | 2020 02 21.05011 | 11 26 55.38 | +53 15 37.5 | 15.6 | R | I81 |
| C/2019 Y4 | 2020 02 21.05370 | 11 26 54.90 | +53 15 45.3 | 15.6 | R | I81 |
| C/2019 Y4 | 2020 02 21.47589 | 11 26 01.25 | +53 30 56.8 | 15.5 | c | T05 |
| C/2019 Y4 | 2020 02 21.47818 | 11 26 00.96 | +53 31 01.6 | 15.6 | c | T05 |
| C/2019 Y4 | 2020 02 21.48360 | 11 26 00.24 | +53 31 13.5 | 15.6 | c | T05 |
| C/2019 Y4 | 2020 02 21.49456 | 11 25 58.80 | +53 31 37.4 | 16.2 | c | T05 |
| C/2019 Y4 | 2020 02 21.52868 | 11 25 54.23 | +53 32 50.3 | 15.5 | c | T05 |
| C/2019 Y4 | 2020 02 21.53168 | 11 25 53.84 | +53 32 56.7 | 15.4 | c | T05 |
| C/2019 Y4 | 2020 02 21.53651 | 11 25 53.19 | +53 33 07.0 | 15.5 | c | T05 |
| C/2019 Y4 | 2020 02 21.54621 | 11 25 51.90 | +53 33 27.7 | 15.4 | c | T05 |
| C/2019 Y4 | 2020 02 21.97744 | 11 24 55.99 | +53 48 54.8 | 15.4 | N | C10 |
| C/2019 Y4 | 2020 02 21.98886 | 11 24 54.43 | +53 49 19.6 | 15.3 | N | C10 |
| C/2019 Y4 | 2020 02 21.98906 | 11 24 54.04 | +53 49 16.4 | 14.0 | T | C10 |
| C/2019 Y4 | 2020 02 22.00067 | 11 24 52.84 | +53 49 45.2 | 15.3 | N | C10 |
| C/2019 Y4 | 2020 02 22.00647 | 11 24 52.14 | +53 49 57.8 | 15.6 | N | J01 |
| C/2019 Y4 | 2020 02 22.00810 | 11 24 51.67 | +53 50 01.5 | 16.5 | N | 461 |
| C/2019 Y4 | 2020 02 22.01067 | 11 24 51.33 | +53 50 07.0 | 16.6 | N | 461 |
| C/2019 Y4 | 2020 02 22.01324 | 11 24 51.00 | +53 50 12.6 | 16.5 | N | 461 |
| C/2019 Y4 | 2020 02 22.01582 | 11 24 50.65 | +53 50 17.8 | 16.5 | N | 461 |
| C/2019 Y4 | 2020 02 22.01839 | 11 24 50.28 | +53 50 23.7 | 16.5 | N | 461 |
| C/2019 Y4 | 2020 02 22.02530 | 11 24 49.56 | +53 50 38.5 | 15.6 | N | J01 |
| C/2019 Y4 | 2020 02 22.03470 | 11 24 48.31 | +53 50 58.7 | 15.6 | N | J01 |
| C/2019 Y4 | 2020 02 22.20041 | 11 24 25.54 | +53 56 55.5 | 16.4 | V | A77 |
| C/2019 Y4 | 2020 02 22.20617 | 11 24 24.76 | +53 57 07.7 | 16.4 | V | A77 |
| C/2019 Y4 | 2020 02 22.21192 | 11 24 23.99 | +53 57 20.2 | 14.4 | T | A77 |
| C/2019 Y4 | 2020 02 22.34432 | 11 24 06.45 | +54 02 06.8 | 15.0 | V | 850 |
| C/2019 Y4 | 2020 02 22.35159 | 11 24 05.41 | +54 02 22.7 | 14.9 | V | 850 |
| C/2019 Y4 | 2020 02 22.35959 | 11 24 04.35 | +54 02 39.7 | 15.0 | V | 850 |
| C/2019 Y4 | 2020 02 22.36683 | 11 24 03.30 | +54 02 55.2 | 15.1 | V | 850 |
| C/2019 Y4 | 2020 02 22.37410 | 11 24 02.29 | +54 03 11.0 | 14.9 | V | 850 |
| C/2019 Y4 | 2020 02 22.56248 | 11 23 37.38 | +54 09 56.3 | 13.2 | T | 349 |
| C/2019 Y4 | 2020 02 22.56804 | 11 23 36.63 | +54 10 08.1 | 349 | ||
| C/2019 Y4 | 2020 02 22.81340 | 11 23 02.94 | +54 18 56.7 | 15.7 | V | K73 |
| C/2019 Y4 | 2020 02 22.82013 | 11 23 02.00 | +54 19 09.6 | 14.9 | V | K73 |
| C/2019 Y4 | 2020 02 22.83707 | 11 22 59.66 | +54 19 45.7 | 15.5 | N | Z55 |
| C/2019 Y4 | 2020 02 22.83743 | 11 22 59.64 | +54 19 46.8 | 15.5 | N | Z55 |
| C/2019 Y4 | 2020 02 22.83780 | 11 22 59.56 | +54 19 47.4 | 15.5 | N | Z55 |
| C/2019 Y4 | 2020 02 22.83817 | 11 22 59.52 | +54 19 48.3 | 15.5 | N | Z55 |
| C/2019 Y4 | 2020 02 22.83853 | 11 22 59.47 | +54 19 49.3 | 15.5 | N | Z55 |
| C/2019 Y4 | 2020 02 22.88876 | 11 22 52.36 | +54 21 38.6 | 15.6 | N | Z50 |
| C/2019 Y4 | 2020 02 22.89304 | 11 22 51.76 | +54 21 48.2 | 15.5 | N | Z50 |
| C/2019 Y4 | 2020 02 22.89519 | 11 22 51.47 | +54 21 52.8 | 15.6 | N | Z50 |
| C/2019 Y4 | 2020 02 22.92815 | 11 22 46.81 | +54 23 03.7 | 15.5 | N | J01 |
| C/2019 Y4 | 2020 02 22.95841 | 11 22 42.41 | +54 24 08.7 | 15.1 | R | I81 |
| C/2019 Y4 | 2020 02 22.95887 | 11 22 42.42 | +54 24 11.3 | 15.5 | N | J01 |
| C/2019 Y4 | 2020 02 22.96271 | 11 22 41.73 | +54 24 18.2 | 15.1 | R | I81 |
| C/2019 Y4 | 2020 02 22.96701 | 11 22 41.19 | +54 24 27.8 | 15.1 | R | I81 |
| C/2019 Y4 | 2020 02 22.97067 | 11 22 40.76 | +54 24 36.8 | 15.5 | N | J01 |
| C/2019 Y4 | 2020 02 22.97131 | 11 22 40.55 | +54 24 36.7 | 15.0 | R | I81 |
| C/2019 Y4 | 2020 02 23.00777 | 11 22 35.24 | +54 25 57.7 | 15.6 | N | 157 |
| C/2019 Y4 | 2020 02 23.01150 | 11 22 34.71 | +54 26 06.2 | 15.5 | N | 157 |
| C/2019 Y4 | 2020 02 23.01435 | 11 22 34.62 | +54 26 10.2 | 15.6 | N | I72 |
| C/2019 Y4 | 2020 02 23.01466 | 11 22 34.26 | +54 26 12.6 | 15.7 | N | 157 |
| C/2019 Y4 | 2020 02 23.01851 | 11 22 33.69 | +54 26 20.8 | 15.8 | N | 157 |
| C/2019 Y4 | 2020 02 23.04716 | 11 22 29.87 | +54 27 20.6 | 15.5 | N | I72 |
| C/2019 Y4 | 2020 02 23.07959 | 11 22 25.22 | +54 28 30.0 | 15.5 | N | I72 |
| C/2019 Y4 | 2020 02 23.45244 | 11 21 32.05 | +54 41 58.6 | 15.0 | o | T08 |
| C/2019 Y4 | 2020 02 23.45550 | 11 21 31.59 | +54 42 05.1 | 14.9 | o | T08 |
| C/2019 Y4 | 2020 02 23.45785 | 11 21 31.80 | +54 42 05.4 | 367 | ||
| C/2019 Y4 | 2020 02 23.45947 | 11 21 31.56 | +54 42 08.9 | 367 | ||
| C/2019 Y4 | 2020 02 23.46109 | 11 21 31.33 | +54 42 12.4 | 12.4 | T | 367 |
| C/2019 Y4 | 2020 02 23.46149 | 11 21 30.71 | +54 42 18.1 | 14.9 | o | T08 |
| C/2019 Y4 | 2020 02 23.47158 | 11 21 29.20 | +54 42 39.8 | 14.9 | o | T08 |
| C/2019 Y4 | 2020 02 23.57170 | 11 21 15.12 | +54 46 13.8 | 12.9 | T | Q11 |
| C/2019 Y4 | 2020 02 23.57602 | 11 21 14.50 | +54 46 23.1 | Q11 | ||
| C/2019 Y4 | 2020 02 23.58905 | 11 21 12.53 | +54 46 51.5 | Q11 | ||
| C/2019 Y4 | 2020 02 23.63278 | 11 21 05.97 | +54 48 25.7 | 13.0 | T | 349 |
| C/2019 Y4 | 2020 02 23.63852 | 11 21 05.12 | +54 48 38.2 | 349 | ||
| C/2019 Y4 | 2020 02 23.89056 | 11 20 28.52 | +54 57 39.3 | 15.7 | V | G20 |
| C/2019 Y4 | 2020 02 23.90336 | 11 20 26.64 | +54 58 07.9 | 15.7 | V | G20 |
| C/2019 Y4 | 2020 02 23.91246 | 11 20 25.22 | +54 58 27.7 | 15.3 | G | B70 |
| C/2019 Y4 | 2020 02 23.91457 | 11 20 24.95 | +54 58 32.0 | 15.7 | V | G20 |
| C/2019 Y4 | 2020 02 23.91736 | 11 20 24.48 | +54 58 38.5 | 15.3 | G | B70 |
| C/2019 Y4 | 2020 02 23.92226 | 11 20 23.76 | +54 58 49.0 | 15.4 | G | B70 |
| C/2019 Y4 | 2020 02 23.93312 | 11 20 22.14 | +54 59 13.1 | 15.5 | N | C35 |
| C/2019 Y4 | 2020 02 23.93464 | 11 20 21.88 | +54 59 15.9 | 15.5 | N | C35 |
| C/2019 Y4 | 2020 02 23.93615 | 11 20 21.67 | +54 59 19.0 | 15.5 | N | C35 |
| C/2019 Y4 | 2020 02 23.96291 | 11 20 17.60 | +55 00 15.9 | 15.0 | R | I81 |
| C/2019 Y4 | 2020 02 23.96719 | 11 20 16.94 | +55 00 24.6 | 15.0 | R | I81 |
| C/2019 Y4 | 2020 02 23.97149 | 11 20 16.30 | +55 00 34.2 | 15.0 | R | I81 |
| C/2019 Y4 | 2020 02 23.97580 | 11 20 15.66 | +55 00 43.5 | 14.9 | R | I81 |
| C/2019 Y4 | 2020 02 24.18856 | 11 19 43.11 | +55 08 24.0 | 16.3 | V | A77 |
| C/2019 Y4 | 2020 02 24.19267 | 11 19 42.54 | +55 08 32.4 | 16.3 | V | A77 |
| C/2019 Y4 | 2020 02 24.19760 | 11 19 41.72 | +55 08 42.7 | 16.5 | V | A77 |
| C/2019 Y4 | 2020 02 24.42000 | 11 19 08.41 | +55 16 43.2 | 14.7 | G | 703 |
| C/2019 Y4 | 2020 02 24.42538 | 11 19 07.57 | +55 16 54.7 | 14.7 | G | 703 |
| C/2019 Y4 | 2020 02 24.43075 | 11 19 06.68 | +55 17 06.1 | 14.6 | G | 703 |
| C/2019 Y4 | 2020 02 24.43613 | 11 19 05.75 | +55 17 19.8 | 703 | ||
| C/2019 Y4 | 2020 02 24.81885 | 11 18 07.87 | +55 30 59.9 | 14.9 | R | 178 |
| C/2019 Y4 | 2020 02 24.86959 | 11 17 59.85 | +55 32 50.9 | 14.7 | R | 178 |
| C/2019 Y4 | 2020 02 24.91697 | 11 17 52.50 | +55 34 33.0 | 15.5 | G | B49 |
| C/2019 Y4 | 2020 02 24.92420 | 11 17 51.35 | +55 34 48.8 | 15.5 | G | B49 |
| C/2019 Y4 | 2020 02 24.93218 | 11 17 50.07 | +55 35 06.0 | 15.4 | G | B49 |
| C/2019 Y4 | 2020 02 24.99316 | 11 17 40.05 | +55 37 17.7 | 14.7 | R | 585 |
| C/2019 Y4 | 2020 02 24.99388 | 11 17 39.92 | +55 37 19.2 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99458 | 11 17 39.81 | +55 37 20.8 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99529 | 11 17 39.69 | +55 37 22.3 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99600 | 11 17 39.59 | +55 37 23.9 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99670 | 11 17 39.47 | +55 37 25.4 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99742 | 11 17 39.36 | +55 37 27.0 | 14.7 | R | 585 |
| C/2019 Y4 | 2020 02 24.99812 | 11 17 39.23 | +55 37 28.6 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99883 | 11 17 39.14 | +55 37 30.0 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 24.99954 | 11 17 39.02 | +55 37 31.3 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00024 | 11 17 38.91 | +55 37 33.0 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00095 | 11 17 38.82 | +55 37 34.3 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00167 | 11 17 38.68 | +55 37 36.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00237 | 11 17 38.56 | +55 37 37.6 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00308 | 11 17 38.46 | +55 37 39.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00378 | 11 17 38.34 | +55 37 40.5 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00450 | 11 17 38.23 | +55 37 42.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00521 | 11 17 38.11 | +55 37 43.5 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00591 | 11 17 38.00 | +55 37 45.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00662 | 11 17 37.92 | +55 37 46.6 | 14.9 | R | 585 |
| C/2019 Y4 | 2020 02 25.00733 | 11 17 37.77 | +55 37 48.2 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00803 | 11 17 37.66 | +55 37 49.5 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.00875 | 11 17 37.53 | +55 37 51.1 | 14.9 | R | 585 |
| C/2019 Y4 | 2020 02 25.00946 | 11 17 37.42 | +55 37 52.6 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01016 | 11 17 37.31 | +55 37 54.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01087 | 11 17 37.21 | +55 37 55.5 | 14.9 | R | 585 |
| C/2019 Y4 | 2020 02 25.01157 | 11 17 37.08 | +55 37 57.0 | 14.9 | R | 585 |
| C/2019 Y4 | 2020 02 25.01229 | 11 17 36.98 | +55 37 58.6 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01300 | 11 17 36.83 | +55 38 00.7 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01370 | 11 17 36.74 | +55 38 01.9 | 14.9 | R | 585 |
| C/2019 Y4 | 2020 02 25.01441 | 11 17 36.65 | +55 38 03.2 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01512 | 11 17 36.52 | +55 38 04.7 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01583 | 11 17 36.41 | +55 38 06.2 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.01654 | 11 17 36.31 | +55 38 08.1 | 14.8 | R | 585 |
| C/2019 Y4 | 2020 02 25.39859 | 11 16 35.50 | +55 51 51.8 | 12.8 | T | H06 |
| C/2019 Y4 | 2020 02 25.39954 | 11 16 35.34 | +55 51 53.8 | 15.1 | N | H06 |
| C/2019 Y4 | 2020 02 25.40141 | 11 16 35.05 | +55 51 57.7 | H06 | ||
| C/2019 Y4 | 2020 02 25.40330 | 11 16 34.75 | +55 52 01.8 | H06 | ||
| C/2019 Y4 | 2020 02 25.86804 | 11 15 20.04 | +56 08 37.6 | 15.3 | V | G20 |
| C/2019 Y4 | 2020 02 25.87782 | 11 15 18.41 | +56 08 58.8 | 15.3 | V | G20 |
| C/2019 Y4 | 2020 02 25.88993 | 11 15 16.32 | +56 09 24.6 | 15.3 | V | G20 |
| C/2019 Y4 | 2020 02 26.34874 | 11 13 59.84 | +56 25 52.9 | 17.6 | G | 568 |
| C/2019 Y4 | 2020 02 26.34960 | 11 13 59.70 | +56 25 54.7 | 17.5 | G | 568 |
| C/2019 Y4 | 2020 02 27.04237 | 11 11 59.86 | +56 50 34.5 | 14.6 | R | I81 |
| C/2019 Y4 | 2020 02 27.04520 | 11 11 59.40 | +56 50 40.6 | 14.6 | R | I81 |
| C/2019 Y4 | 2020 02 27.04950 | 11 11 58.62 | +56 50 49.5 | 14.6 | R | I81 |
| C/2019 Y4 | 2020 02 27.05381 | 11 11 57.84 | +56 50 58.3 | 14.6 | R | I81 |
| C/2019 Y4 | 2020 02 27.18095 | 11 11 34.90 | +56 55 30.6 | 16.2 | V | A77 |
| C/2019 Y4 | 2020 02 27.18355 | 11 11 34.42 | +56 55 36.2 | 16.2 | V | A77 |
| C/2019 Y4 | 2020 02 27.18678 | 11 11 33.86 | +56 55 43.3 | 14.0 | T | A77 |
| C/2019 Y4 | 2020 02 27.37902 | 11 10 59.91 | +57 02 33.5 | 14.0 | N | H45 |
| C/2019 Y4 | 2020 02 27.38123 | 11 10 59.52 | +57 02 38.8 | 14.1 | N | H45 |
| C/2019 Y4 | 2020 02 27.38320 | 11 10 59.17 | +57 02 42.9 | 14.1 | N | H45 |
| C/2019 Y4 | 2020 02 27.38528 | 11 10 58.79 | +57 02 47.3 | 14.1 | N | H45 |
| C/2019 Y4 | 2020 02 27.38660 | 11 10 58.54 | +57 02 50.1 | 14.1 | N | H45 |
| C/2019 Y4 | 2020 02 27.60640 | 11 10 19.68 | +57 10 39.6 | 12.0 | T | Q11 |
| C/2019 Y4 | 2020 02 27.61580 | 11 10 17.91 | +57 10 59.5 | Q11 | ||
| C/2019 Y4 | 2020 02 27.62374 | 11 10 16.44 | +57 11 16.5 | Q11 | ||
| C/2019 Y4 | 2020 02 27.63781 | 11 10 13.04 | +57 11 44.7 | 14.5 | o | T08 |
| C/2019 Y4 | 2020 02 27.64196 | 11 10 12.26 | +57 11 53.2 | 14.4 | o | T08 |
| C/2019 Y4 | 2020 02 27.64708 | 11 10 11.32 | +57 12 04.1 | 14.5 | o | T08 |
| C/2019 Y4 | 2020 02 27.65223 | 11 10 10.38 | +57 12 15.0 | 14.5 | o | T08 |
| C/2019 Y4 | 2020 02 27.86311 | 11 09 33.38 | +57 19 42.9 | 15.0 | N | Z50 |
| C/2019 Y4 | 2020 02 27.86630 | 11 09 32.79 | +57 19 49.5 | 15.0 | N | Z50 |
| C/2019 Y4 | 2020 02 27.86787 | 11 09 32.47 | +57 19 53.2 | 15.0 | N | Z50 |
| C/2019 Y4 | 2020 02 27.97052 | 11 09 13.07 | +57 23 29.0 | 14.1 | R | L59 |
| C/2019 Y4 | 2020 02 27.97737 | 11 09 11.77 | +57 23 42.9 | 14.0 | R | L59 |
| C/2019 Y4 | 2020 02 27.98417 | 11 09 10.49 | +57 23 57.4 | 13.9 | R | L59 |
| C/2019 Y4 | 2020 02 28.08265 | 11 08 52.04 | +57 27 30.0 | 15.2 | G | C23 |
| C/2019 Y4 | 2020 02 28.08939 | 11 08 50.77 | +57 27 44.0 | 15.0 | G | C23 |
| C/2019 Y4 | 2020 02 28.09687 | 11 08 49.36 | +57 28 00.1 | 15.2 | G | C23 |
| C/2019 Y4 | 2020 02 28.21398 | 11 08 28.12 | +57 32 11.1 | 15.5 | V | 850 |
| C/2019 Y4 | 2020 02 28.24555 | 11 08 22.08 | +57 33 18.2 | 15.5 | V | 850 |
| C/2019 Y4 | 2020 02 28.82386 | 11 06 32.78 | +57 53 37.3 | 14.8 | V | G23 |
| C/2019 Y4 | 2020 02 28.84412 | 11 06 28.80 | +57 54 22.0 | 14.7 | V | G23 |
| C/2019 Y4 | 2020 02 28.84567 | 11 06 28.50 | +57 54 24.3 | 14.6 | V | A71 |
| C/2019 Y4 | 2020 02 28.85998 | 11 06 25.77 | +57 54 54.3 | 15.1 | V | A71 |
| C/2019 Y4 | 2020 02 28.86507 | 11 06 24.73 | +57 55 05.1 | 14.7 | V | G23 |
| C/2019 Y4 | 2020 02 28.89993 | 11 06 18.29 | +57 56 20.0 | 14.9 | N | Z39 |
| C/2019 Y4 | 2020 02 28.90734 | 11 06 16.77 | +57 56 35.8 | 14.8 | N | Z39 |
| C/2019 Y4 | 2020 02 28.91479 | 11 06 15.33 | +57 56 51.6 | 14.9 | N | Z39 |
| C/2019 Y4 | 2020 02 28.96375 | 11 06 05.34 | +57 58 35.2 | 14.9 | G | L39 |
| C/2019 Y4 | 2020 02 28.96539 | 11 06 05.01 | +57 58 38.3 | 15.5 | V | A71 |
| C/2019 Y4 | 2020 02 28.96998 | 11 06 04.06 | +57 58 48.8 | 15.0 | G | L39 |
| C/2019 Y4 | 2020 02 28.97882 | 11 06 02.40 | +57 59 07.5 | 15.0 | G | L39 |
| C/2019 Y4 | 2020 02 28.97981 | 11 06 02.15 | +57 59 08.3 | 15.6 | V | A71 |
| C/2019 Y4 | 2020 02 29.15159 | 11 05 28.03 | +58 05 10.7 | 14.0 | T | A77 |
| C/2019 Y4 | 2020 02 29.15734 | 11 05 26.91 | +58 05 22.9 | 15.9 | V | A77 |
| C/2019 Y4 | 2020 02 29.16307 | 11 05 25.81 | +58 05 34.0 | 16.0 | V | A77 |
| C/2019 Y4 | 2020 02 29.27952 | 11 05 03.70 | +58 09 40.0 | 14.1 | G | 703 |
| C/2019 Y4 | 2020 02 29.28489 | 11 05 02.62 | +58 09 51.6 | 14.0 | G | 703 |
| C/2019 Y4 | 2020 02 29.29027 | 11 05 01.55 | +58 10 04.7 | 703 | ||
| C/2019 Y4 | 2020 02 29.29885 | 11 04 59.81 | +58 10 21.0 | 13.9 | G | 703 |
| C/2019 Y4 | 2020 02 29.30674 | 11 04 58.14 | +58 10 37.9 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.31402 | 11 04 56.79 | +58 10 53.6 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.31644 | 11 04 56.27 | +58 10 58.7 | 14.8 | N | H06 |
| C/2019 Y4 | 2020 02 29.79738 | 11 03 20.71 | +58 27 41.9 | K81 | ||
| C/2019 Y4 | 2020 02 29.81003 | 11 03 18.05 | +58 28 08.4 | K81 | ||
| C/2019 Y4 | 2020 02 29.82065 | 11 03 15.93 | +58 28 31.0 | K81 | ||
| C/2019 Y4 | 2020 02 29.83124 | 11 03 13.73 | +58 28 53.3 | K81 | ||
| C/2019 Y4 | 2020 02 29.98793 | 11 02 41.39 | +58 34 22.3 | 14.6 | G | Z80 |
| C/2019 Y4 | 2020 02 29.99225 | 11 02 40.44 | +58 34 31.7 | 14.6 | G | Z80 |
| C/2019 Y4 | 2020 03 01.83339 | 10 59 45.41 | +59 03 38.3 | 14.9 | V | G20 |
| C/2019 Y4 | 2020 03 01.83917 | 10 59 44.08 | +59 03 50.3 | 15.0 | V | G20 |
| C/2019 Y4 | 2020 03 01.84476 | 10 59 42.95 | +59 04 01.9 | 14.9 | V | G20 |
| C/2019 Y4 | 2020 03 02.42892 | 10 57 35.97 | +59 24 09.8 | 14.1 | o | T08 |
| C/2019 Y4 | 2020 03 02.43174 | 10 57 35.34 | +59 24 15.9 | 14.2 | o | T08 |
| C/2019 Y4 | 2020 03 02.44183 | 10 57 33.08 | +59 24 37.2 | 15.2 | o | T08 |
| C/2019 Y4 | 2020 03 02.44707 | 10 57 31.89 | +59 24 47.4 | 14.2 | o | T08 |
| C/2019 Y4 | 2020 03 02.87626 | 10 55 57.00 | +59 39 21.7 | 14.5 | N | C86 |
| C/2019 Y4 | 2020 03 02.87924 | 10 55 56.44 | +59 39 27.4 | 14.5 | N | C86 |
| C/2019 Y4 | 2020 03 02.88023 | 10 55 56.36 | +59 39 30.9 | 14.5 | N | C86 |
| C/2019 Y4 | 2020 03 02.95985 | 10 55 37.93 | +59 42 09.6 | 13.7 | R | L59 |
| C/2019 Y4 | 2020 03 02.97149 | 10 55 35.24 | +59 42 31.9 | 13.4 | R | L59 |
| C/2019 Y4 | 2020 03 02.97756 | 10 55 33.85 | +59 42 45.1 | 13.5 | R | L59 |
| C/2019 Y4 | 2020 03 03.00824 | 10 55 26.82 | +59 43 50.7 | 14.3 | G | Z80 |
| C/2019 Y4 | 2020 03 03.01519 | 10 55 25.26 | +59 44 05.0 | 14.6 | G | Z80 |
| C/2019 Y4 | 2020 03 03.05488 | 10 55 16.04 | +59 45 25.8 | 14.9 | G | C23 |
| C/2019 Y4 | 2020 03 03.06461 | 10 55 13.80 | +59 45 45.6 | 14.8 | G | C23 |
| C/2019 Y4 | 2020 03 03.07659 | 10 55 11.04 | +59 46 09.9 | 14.9 | G | C23 |
| C/2019 Y4 | 2020 03 03.52664 | 10 53 28.62 | +60 01 23.8 | Q23 | ||
| C/2019 Y4 | 2020 03 03.54142 | 10 53 25.13 | +60 01 53.9 | Q23 | ||
| C/2019 Y4 | 2020 03 03.58112 | 10 53 15.71 | +60 03 14.4 | Q23 | ||
| C/2019 Y4 | 2020 03 03.58999 | 10 53 13.60 | +60 03 32.5 | 12.2 | T | Q23 |
| C/2019 Y4 | 2020 03 03.88351 | 10 52 05.25 | +60 13 20.5 | 14.0 | N | 970 |
| C/2019 Y4 | 2020 03 03.90491 | 10 52 00.13 | +60 14 04.0 | 14.0 | N | 970 |
| C/2019 Y4 | 2020 03 03.99333 | 10 51 38.95 | +60 17 01.2 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 03.99618 | 10 51 38.27 | +60 17 06.9 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.00193 | 10 51 36.88 | +60 17 18.4 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.00624 | 10 51 35.85 | +60 17 27.1 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.18478 | 10 50 52.83 | +60 23 22.7 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.18763 | 10 50 52.15 | +60 23 28.3 | 14.0 | R | I81 |
| C/2019 Y4 | 2020 03 04.19338 | 10 50 50.77 | +60 23 39.7 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.19769 | 10 50 49.73 | +60 23 48.3 | 14.1 | R | I81 |
| C/2019 Y4 | 2020 03 04.87940 | 10 48 04.88 | +60 46 25.6 | 14.9 | R | 160 |
| C/2019 Y4 | 2020 03 04.88565 | 10 48 03.31 | +60 46 38.0 | 15.0 | R | 160 |
| C/2019 Y4 | 2020 03 04.89192 | 10 48 01.70 | +60 46 50.3 | 15.0 | R | 160 |
| C/2019 Y4 | 2020 03 05.58385 | 10 45 08.01 | +61 09 24.3 | 12.7 | R | D29 |
| C/2019 Y4 | 2020 03 05.59690 | 10 45 04.62 | +61 09 49.5 | 12.5 | R | D29 |
| C/2019 Y4 | 2020 03 05.60994 | 10 45 01.22 | +61 10 15.1 | 12.5 | R | D29 |
| C/2019 Y4 | 2020 03 05.79844 | 10 44 13.18 | +61 16 21.5 | 14.3 | N | 213 |
| C/2019 Y4 | 2020 03 05.80523 | 10 44 11.41 | +61 16 35.2 | 14.5 | N | 213 |
| C/2019 Y4 | 2020 03 05.85240 | 10 43 59.15 | +61 18 07.0 | 14.4 | N | 213 |