28P/Neujmin
Synodic rotation period | 12.75 ± 0.03 hours[6] | |
28P/Neujmin, also known as Neujmin 1, is a large periodic
The
opposition in May 2020, when it was still 3.5 AU
from the Sun, it had an apparent magnitude around 16.9. But during the 2021 perihelion passage the comet was on the opposite side of the Sun as the Earth. The comet is not known for bright outbursts of activity.
References
- ^ a b Seiichi Yoshida (2004-09-07). "28P/Neujmin 1". Seiichi Yoshida's Comet Catalog. Retrieved 2010-02-26.
- ^ Syuichi Nakano (2001-05-01). "28P/Neujmin 1 (NK 798)". OAA Computing and Minor Planet Sections. Retrieved 2010-02-26.
- ^ "28P/Neujmin Orbit". Minor Planet Center. Retrieved 2021-09-12.
- ^ "Horizons Batch for 28P/Neujmin 1 (90000386) on 2039-Jul-23" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2023-05-02. (JPL#74/Soln.date: 2023-Mar-29)
- ^ a b c d "JPL Small-Body Database Browser: 28P/Neujmin 1" (last observation: 2023-03-21). Jet Propulsion Laboratory. Retrieved 2010-02-25.
- .
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 28P at Kronk's Cometography
- 28P/Neujmin 1 – Seiichi Yoshida @ aerith.net
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