C/2021 O3 (PanSTARRS)
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| 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 | 92 |
| Orbit type | Long-period |
| Aphelion | 144.2906898717996 AU |
| Perihelion | 0.2926330187341856 AU |
| Semi-major axis | 72.29166144526688 AU |
| Eccentricity | 0.9959520501689432 |
| Orbital period | 616.47 y |
| Inclination | 56.09786982561192° |
| Next perihelion | 21 April 2022 |
| TJupiter | 0.446 |
| Earth MOID | 0.0669607 au |
| Jupiter MOID | 2.16573 au |
| Comet total magnitude (M1) | 10.6 |
C/2021 O3 (PanSTARRS) is a (near-) parabolic comet, discovered on 26 July 2021 from the Pan-STARRS sky survey. With 10 days of observation, it is expected to reach perihelion on 21 April 2022 at just 0.286 AU from the sun, possibly reaching 5-7 magnitude by late April 2022.[2][3]
Orbit
References
- ^ "JPL Small-Body Database Browser". ssd.jpl.nasa.gov. Retrieved 2021-08-16.
- ^ http://www.cbat.eps.harvard.edu/iau/cbet/005000/CBET005009.txt
- ^ http://mpcweb1.cfa.harvard.edu/mpec/K21/K21P05.html
- C/2021 O3 at the JPL Small-Body Database
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