280P/Larsen (2004)

Japanese version Home page

Updated on February 9, 2013

Profile Designation 280P/2004 H2 Discovery Date April 19, 2004 Magnitude 20.4 mag Discoverer J. A. Larsen (Lunar and Planetary Laboratory)

Orbital Elements Epoch 2004 Apr. 25.0 TT = JDT 2453120.5 T 2004 May 10.95716 TT MPC q 2.6171311 (2000.0) P Q n 0.10316353 Peri. 104.55775 -0.54231155 +0.82615556 a 4.5024814 Node 131.55346 -0.82784435 -0.49437451 e 0.4187358 Incl. 11.78629 -0.14342911 -0.27029766 P 9.55 From 67 observations 2004 Apr. 19-2013 Feb. 6, mean residual 0".6.

Finding Charts

Magnitudes Graph m1 = 13.2 + 5 log d + 10.0 log r [ , 0] ( - 2004 May 10) m1 = -191.6 + 5 log d + 500 log r [ 0,50] (2004 May 10 - 2004 June 29) m1 = 15.0 + 5 log d + 10.0 log r [50, ] (2004 June 29 - ) * Gray curve is: m1 = 13.2 + 5 log d + 10.0 log r

The orbital elements are published on M.P.E.C. 2013-C25. The charts are made with StellaNavigator Ver.2.0 for Windows (AstroArts / ASCII). The magnitudes graphs are made with Comet for Windows.