21P/Giacobini-Zinner (2012)

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Updated on June 11, 2016

Profile Pictures

Orbital Elements Epoch 2012 Feb. 3.0 TT = JDT 2455960.5 T 2012 Feb. 11.73453 TT Kobayashi q 1.0304945 (2000.0) P Q n 0.14940287 Peri. 172.60294 +0.98510219 -0.09938139 a 3.5174675 Node 195.39704 +0.11782875 +0.98449970 e 0.7070351 Incl. 31.91075 +0.12525995 -0.14451185 P 6.60 From 930 observations 1998 Nov. 22-2013 Apr. 1, mean residual 0".9. Nongravitational parameters A1 = +0.42, A2 = -0.0985.

Finding Charts

Magnitudes Graph m1 = 8.7 + 5 log d + 18.5 log r [ ,0] ( - 2012 Feb. 11) m1 = 8.8 + 5 log d + 15.0 log r [0, ] (2012 Feb. 11 - )

The orbital elements are published on M.P.E.C. 2015-M77. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.