21P/Giacobini-Zinner (2012)

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Updated on April 13, 2013

Profile Pictures

Orbital Elements Epoch 2012 Feb. 3.0 TT = JDT 2455960.5 T 2012 Feb. 11.73466 TT MPC q 1.0304891 (2000.0) P Q n 0.14939636 Peri. 172.60355 +0.98510128 -0.09939158 a 3.5175697 Node 195.39700 +0.11783860 +0.98449875 e 0.7070451 Incl. 31.91064 +0.12525788 -0.14451133 P 6.60 From 1204 observations 1998 Jan. 20-2012 Feb. 29, mean residual 0".8. Nongravitational parameters A1 = +0.13, A2 = -0.0982.

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. 2012-F11. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.