P/2016 P5 (COIAS)
| Discovery[1] | |
|---|---|
| Discovered by | Seitaro Urakawa H. Fukuyama |
| Discovery site | Subaru–MKO Come On! Impacting ASteroids (COIAS) |
| Discovery date | 1 August 2016 |
| Designations | |
| H431154 | |
| Orbital characteristics[3] | |
| Epoch | 1 December 2015 (JD 2457357.5) |
| Observation arc | 18.83 years |
| Earliest precovery date | 23 June 2004 |
| Number of observations | 58 |
| Aphelion | 4.979 AU |
| Perihelion | 4.426 AU |
| Semi-major axis | 4.703 AU |
| Eccentricity | 0.05885 |
| Orbital period | 10.198 years |
| Inclination | 7.036° |
| 185.48° | |
| Argument of periapsis | 33.632° |
| Last perihelion | 29 May 2023[2] |
| Next perihelion | c. 2033 |
| TJupiter | 2.990 |
| Earth MOID | 3.422 AU |
| Jupiter MOID | 0.001 AU |
| Comet total magnitude (M1) | 8.0 |
P/2016 P5 (COIAS) is a Jupiter-family comet with a 10-year orbit around the Sun. Its discovery was announced on 21 March 2025, when cometary activity was spotted on an asteroidal object that was photographed by the Subaru Telescope in 2016.[4]
It is the second comet discovered through the Come On! Impacting ASteroids (COIAS) campaign.[5][a]
Notes
- ^ The first comet discovered by the same program was C/2015 K7 (COIAS)
References
- ^ S. Urakawa; H. Fukuyama; S. Deen (21 March 2025). D. W. Green (ed.). "Comet P/2016 P5 (COIAS)". Central Bureau for Astronomical Telegrams. 5529. Bibcode:2025CBET.5529....1U.
- ^ S. Yoshida. "P/2016 P5 (COIAS)". www.aerith.net. Retrieved 8 May 2025.
- ^ "P/2016 P5 (COIAS) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 8 May 2025.
- ^ "COIAS Achieves the First Comet Discovery and Names Three Asteroids!". Subaru Telescope. 23 April 2025. Retrieved 25 December 2025.
- ^ 未発見小惑星検出アプリCOIAS公式 [@coias_t09] (21 March 2025). "[The second comet discovered on COIAS] A periodic comet P/2016 P5 (COIAS) has been discovered! Our participant informed us of the discovery of the comet from the Subaru Telescope image on July 3, 2016. This object was named "COIAS" after our citizen science project" (Tweet) – via X (formerly Twitter).
External links
- P/2016 P5 at the JPL Small-Body Database
- P/2016 P5 at Tsutomu Seki's website