C/2021 O3 (PanSTARRS)
| File:2628189p23.png Comet C/2021 O3 on August 05, 2021 from the Canada-France-Hawaii Telescope. The comet is at the center, and has a faint tail towards the southwest (lower right). | |
| Discovery | |
|---|---|
| Discovered by | Pan-STARRS |
| Discovery date | 26 July 2021 |
| Orbital characteristics | |
| Number of observations | 279 |
| Orbit type | Oort cloud[2] |
| Perihelion | 0.287 AU[1] |
| Eccentricity | 1.00005 (epoch 1950)[2] 1.002 (epoch 2021)[1] 1.0001 (epoch 2100)[2] |
| Inclination | 56.75° |
| Next perihelion | 21 April 2022 |
| TJupiter | 0.446 |
| Earth MOID | 0.062 au[1] |
| Jupiter MOID | 2.16 au |
| Comet total magnitude (M1) | 10.6 |
C/2021 O3 (PanSTARRS) is an Oort cloud comet, discovered on 26 July 2021 from the Pan-STARRS sky survey. It will come to perihelion on 21 April 2022 at just 0.287 AU from the Sun. It might reach apparent magnitude 6-7 by late April 2022, but will only be 15 degrees from the Sun.[3]
Orbit
References
- ^ a b c "JPL Small-Body Database Browser: C/2021 O3 (PANSTARRS)". Jet Propulsion Laboratory. Retrieved 28 September 2021.
- ^ a b c "JPL Horizons On-Line Ephemeris for 2021 O3 at epoch 1950 and 2100 (barycentric)". JPL Horizons On-Line Ephemeris System. Jet Propulsion Laboratory. Retrieved 29 September 2021. Solution using the Solar System Barycenter. Ephemeris Type:Elements and Center:@0 (To be outside planetary region, inbound epoch 1950 and outbound epoch 2100. Aphelia/orbital periods defined while in the planetary-region are misleading for knowing the long-term inbound/outbound solutions.)
- ^ http://www.cbat.eps.harvard.edu/iau/cbet/005000/CBET005009.txt
- C/2021 O3 at the JPL Small-Body Database
External links
- MPEC 2021-P05 : COMET C/2021 O3 (PANSTARRS) (7-day arc)
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