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C/1989 Y1
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Type
Comet (Hyperbolic)
Status
Not Following
Source
NEODSYS
UTC date
------------ Any 1.0m ------------
LSC 1.0m - W85-87; (CTIO, Chile)
ELP 1.0m - V37,V39; (McDonald, Texas)
COJ 1.0m - Q63-64; (Siding Spring, Aust.)
CPT 1.0m - K91-93; (Sutherland, S. Africa)
TFN 1.0m - Z31,Z24; (Tenerife, Spain)
------------ Any 0.4m ------------
LSC 0.4m - W89,W79; (CTIO, Chile)
ELP 0.4m - V38,V45,V47; (McDonald, Texas)
OGG 0.4m - T03-04; (Maui, Hawaii)
COJ 0.4m - Q58-59; (Siding Spring, Aust.)
CPT 0.4m - L09; (Sutherland, S. Africa)
TFN 0.4m - Z17,Z21; (Tenerife, Spain)
------------ Any 2.0m ------------
FTS 2.0m - E10; (Siding Spring, Aust.) [MuSCAT4]
FTN 2.0m - F65; (Maui, Hawaii ) [MuSCAT3]
------------ Non LCO ------------
Mt John 1.8m - 474 (Mt John, NZ)
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Last Update: 2026-May-22 17:18
Orbital Elements
MPC Comet
Epoch of elements (MJD)
47946.0
Feb. 24, 1990
Orbital inclination in deg
59.36587406151146
Longitude of Ascending Node (deg)
280.009427352646
Arg of perihelion (deg)
137.8332824022838
Eccentricity
1.000301347318485
Perihelion distance (AU)
1.5691675
Epoch of perihelion
April 11, 1990, 10:18 p.m.
Epoch of perihelion (MJD)
47992.92986
Total Magnitude (M1)
5.3
Slope Parameter (k1)
30.625
Physical Parameters
Follow-up Details
Number of observations
106
Arc length (days)
1008.00
Spectroscopy Details
Known Taxonomies
None
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