17P/Holmes (2007)

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Updated on February 27, 2017

Profile Pictures

Orbital Elements The following orbital elements are taken from MPC 51822: Epoch 2007 May 20.0 TT = JDT 2454240.5 T 2007 May 4.4995 TT MPC q 2.053169 (2000.0) P Q n 0.1432508 Peri. 24.2585 +0.9756506 +0.1267918 a 3.617468 Node 326.8675 -0.2124462 +0.7491399 e 0.432429 Incl. 19.1132 +0.0545208 +0.6501640 P 6.88 From 139 observations 1964-2001, mean residual 0".7. Nongravitational parameters A1 = +0.19, A2 = +0.0287.

Finding Charts

Magnitudes Graph m1 = 1.5 + 5 log d + 35 log r [ ,172.5] ( - 2007 Oct. 24) m1 = -18.2 + 5 log d + 50 log r [172.5,198 ] (2007 Oct. 24 - 2007 Nov. 18) m1 = 0.0 + 5 log d + 5.0 log r [198 ,450 ] (2007 Nov. 18 - 2008 July 27) m1 = 3.5 + 5 log d + 20 log r [450 , ] (2008 July 27 - ) * Gray curve is: m1 = 1.5 + 5 log d + 35 log r

The orbital elements are published at the MPC Ephemerides and Orbital Elements. The charts are made with StellaNavigator Ver.8 (AstroArts). The magnitudes graphs are made with Comet for Windows.