C/2013 A1 ( Siding Spring )

Japanese version
Home page
Updated on January 24, 2016

---------------------------------------------------------------------

* Profile

Discovery Date January 3, 2013
Magnitude 18.6 mag
Discoverer Robert H. McNaught (Siding Spring)

* Pictures

* Orbital Elements

Epoch 2014 Oct. 30.0 TT = JDT 2456960.5
T 2014 Oct. 25.30089 TT                                 MPCW
q   1.3987167            (2000.0)            P               Q
z  -0.0002747      Peri.    2.42176     +0.49140977     -0.56132769
                   Node   300.97673     -0.81154822     -0.57261404
e   1.0003842      Incl.  129.04277     -0.31607899     +0.59751518
From 2882 observations 2012 Oct. 4-2015 Oct. 8, mean residual 0".6.
     Nongravitational parameters A1 = +1.99, A2 = -0.3213.

* Finding Charts

* Magnitudes Graph

        m1 = 8.8 + 5 log d +  6.0 log r(t + 40)  [   , 17]  (             - 2014 Nov. 11)
        m1 = 5.0 + 5 log d + 18.0 log r          [ 17,170]  (2014 Nov. 11 - 2015 Apr. 13)
        m1 = 9.5 + 5 log d +  7.5 log r          [170,   ]  (2015 Apr. 13 -             )

---------------------------------------------------------------------

The orbital elements are published on M.P.E.C. 2015-U54.
The charts are made with StellaNavigator Ver.8 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

---------------------------------------------------------------------

Copyright(C) Seiichi Yoshida (comet@aerith.net). All rights reserved.