117P/Helin-Roman-Alu 1 (2005)

Japanese version Home page

Updated on November 29, 2009

Profile Pictures

Orbital Elements Epoch 2005 Dec. 16.0 TT = JDT 2453720.5 T 2005 Dec. 19.9071 TT MPCN q 3.036972 (2000.0) P Q n 0.1196072 Peri. 222.6710 +0.1945786 +0.9722749 a 4.079727 Node 58.9404 -0.8541888 +0.2329553 e 0.255594 Incl. 8.7081 -0.4821832 -0.0203323 P 8.24 From 191 observations 1988-1999, mean residual 0".7.

Finding Charts

Magnitudes Graph m1 = 3.0 + 5 log d + 18.0 log r(t - 140)

The orbital elements are published at the MPC Ephemerides and Orbital Elements. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.