C/1999 S2 ( McNaught-Watson )

Japanese version Home page

Updated on July 29, 2002

Profile Discovery Date September 19, 1999 Magnitude 17.5 mag Discoverer R. H. McNaught, F. G. Watson (Australia)

Orbital Elements Epoch 1997 Nov. 8.0 TT = JDT 2450760.5 T 1997 Nov. 22.5066 TT Nakano q 6.466250 (2000.0) P Q z -0.001123 Peri. 223.4713 +0.0767156 +0.4711161 +/-0.000005 Node 74.4280 -0.4611781 +0.7981483 e 1.007263 Incl. 65.8130 -0.8839850 -0.3755115 From 79 observations 1999 Sept. 19-2001 Oct. 14, mean residual 0".7.

Finding Charts

Magnitudes Graph m1 = 3.2 + 5 log d + 10.0 log r

The orbital elements are calculated by Syuichi Nakano and 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.