C/2009 Y1 ( Catalina )

Japanese version Home page

Updated on December 15, 2011

Profile Discovery Date December 17, 2009 Magnitude 19.4 mag Discoverer Catalina Sky Survey Pictures

Orbital Elements Epoch 2011 Feb. 8.0 TT = JDT 2455600.5 T 2011 Jan. 28.90270 TT MPC q 2.5204957 (2000.0) P Q z +0.0026531 Peri. 127.39167 +0.65144193 +0.68689707 +/-0.0000003 Node 160.27724 -0.28549180 -0.17149600 e 0.9933128 Incl. 107.31641 +0.70293516 -0.70623051 From 1571 observations 2009 Dec. 17-2011 Nov. 22, mean residual 0".5.

Finding Charts

Magnitudes Graph m1 = 5.5 + 5 log d + 15.0 log r(t - 15)

The orbital elements are published on M.P.E.C. 2011-W48. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.