C/1987 W1 ( Ichimura )

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Updated on November 10, 2002

Profile Discovery Date November 22, 1987 Magnitude 9 mag Discoverer Yoshimi Ichimura (Yoshimi-machi, Saitama)

Orbital Elements T = 1988 Jan. 10.100 ET W = 329.317 O = 225.800 1950.0 q = 0.19951 AU i = 41.564

Magnitudes Graph m1 = 8.0 + 5 log d + 25 log r [ ,-40] ( - 1987 Dec. 1) m1 = 9.5 + 5 log d - 2.0 log r [-40, 0] (1987 Dec. 1 - 1988 Jan. 10) m1 = 25 + 5 log d + 20 log r [ 0, ] (1988 Jan. 10 - ) * Gray curve is: m1 = 9.0 + 5 log d + 10.0 log r

The orbital elements are printed on IAUC 4504. The magnitudes graphs are made with Comet for Windows.