17P/Holmes (2021)

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Updated on May 19, 2019

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* Profile

* Orbital Elements

Epoch 2021 Mar. 7.0 TT = JDT 2459280.5
T 2021 Feb. 19.82702 TT                                 MPCW
q   2.0806867            (2000.0)            P               Q
n   0.14215191     Peri.   24.46753     +0.97547069     +0.12754573
a   3.6360869      Node   326.62033     -0.21320617     +0.75022190
e   0.4277676      Incl.   19.03199     +0.05477281     +0.64876744
P   6.93
From 4748 observations 2000 Aug. 9-2019 May 9, mean residual 0".5.
     Nongravitational parameters A1 = +0.41, A2 = +0.1487.

* Finding Charts

* Magnitudes Graph

        m1 =   7.5 + 5 log d + 15   log r  [    ,-310]  (             - 2020 Apr. 15)
        m1 =   0.0 + 5 log d + 35   log r  [-310, 288]  (2020 Apr. 15 - 2021 Dec.  4)
        m1 =   9.3 + 5 log d + 15.0 log r  [ 288,    ]  (2021 Dec.  4 -             )

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The orbital elements are published on M.P.E.C. 2019-J142.
The charts are made with StellaNavigator Ver.8 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

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