70P/Kojima
Semi-major axis 3.6759 AU | | |
| Eccentricity | 0.4541 | |
|---|---|---|
| Orbital period | 7.05 yr | |
| Inclination | 6.6003° | |
| Last perihelion | 2021-Nov-03[1] 2014-Oct-20 | |
| Next perihelion | 2028-Nov-21[2] | |
70P/Kojima is a periodic comet in the Solar System with a current orbital period of 7.05 years.[3][4]
It was discovered at Ishiki, Aichi, Japan by Nobuhisa Kojima, who estimated its brightness at magnitude 14. Its parabolic orbit was calculated by Kiichirō Furukawa to have a perihelion date of 1 November 1970. This was revised on the basis of further observations to an elliptical orbit with a perihelion of 7 October and an orbital period of 6.16.
Astronomical Unit
) to 1.97 AU, increased the eccentricity from 0.39 to 0.46 and reduced the orbital period from 7.85 to 6.99 years.
See also
References
- ^ MPC
- ^ "Horizons Batch for 70P/Kojima (90000714) on 2028-Nov-21" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2023-07-06. (JPL#60 Soln.date: 2023-Apr-05)
- ^ "70P/Kojima". Retrieved 22 February 2015.
- ^ "Elements and Ephemeris for 70P/Kojima". International Astronomical Union. Archived from the original on 4 March 2016. Retrieved 22 February 2015.
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