17P/Holmes (2028)

Japanese version
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 Updated on August 1, 2026

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* Profile

* Orbital Elements

Perturbed ephemeris below is based on elements from MPEC 2020-SI8.

Epoch (TT/JD) T (TT/JD)         Peri.     Node      Incl.   
2461800.50000 2461802.1346199  24.50920 326.59333  19.00347 

    e             q             a      Epoch (TT)
0.4260985     2.0919721      3.64518  2028/01/30.00

* Finding Charts

* Magnitudes Graph

        m1 = 11.5 + 5 log d + 12.0 log r  [    ,-240]  (             - 2027 June  5)
        m1 =  1.5 + 5 log d + 35   log r  [-240, 160]  (2027 June  5 - 2028 July  9)
        m1 =  9.3 + 5 log d + 15.0 log r  [ 160,    ]  (2028 July  9 -             )

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The orbital elements are calculated using the Minor Planet & Comet Ephemeris Service.
The charts are made with StellaNavigator Ver.11 (AstroArts).
The magnitudes graphs are made with Comet for Windows.

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