103P/Hartley 2 (1991)

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Updated on July 16, 2006

Profile Designation 103P/1991 N1 Recovery Date July 9, 1991 Magnitude 11 mag Recoverer T. V. Kryachko (Majdanak)

Orbital Elements Epoch = 1991 Sept.21.0 ET T = 1991 Sept.11.6542 ET Peri. = 174.9337 e = 0.719489 Node = 226.0539 1950.0 q = 0.953285 AU Incl. = 9.2561 a = 3.398382 AU n = 0.1573243 P = 6.265 years

Magnitudes Graph m1 = 8.2 + 5 log d + 20.0 log r(t - 20) [ ,120] ( - 1992 Jan. 9) m1 = 10.0 + 5 log d + 10.0 log r [120, ] (1992 Jan. 9 - )

The orbital elements are calculated by Dr. Green and printed on IAUC 5324. The magnitudes graphs are made with Comet for Windows.