C/1989 W1 (Aarseth–Brewington)

C/1989 W1 (Aarseth–Brewington) is a non-periodic comet discovered on 16 November 1989 independently by Knut Aarseth and Howard Brewington. It reached an apparent magnitude of 2.8.

C/1989 W1 (Aarseth–Brewington)
Discovery
Discovered byKnut Aarseth
Howard J. Brewington
Discovery date16 November 1989
Designations
Alternative designations
1989a1, 1989 XXII
Orbital characteristics
Epoch1989-Dec-05
Observation arc151 days
Earliest precovery date1 September 1989
Perihelion0.301 AU
Eccentricity1.00006
Inclination88.39°
Longitude of
ascending node
345.92°
Argument of
periapsis		205.26°
Last perihelion27 December 1989
Earth MOID0.668 AU
Comet total
magnitude (M1)		8.2
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