P/2011 P1 (McNaught)
| Discovery | |
|---|---|
| Discovered by | Robert H. McNaught |
| Discovery site | Siding Spring, Australia |
| Discovery date | 1 August 2011 |
| Orbital characteristics[1][2] | |
| Epoch | 12 August 2011 (JD 2455793.5) |
| Observation arc | 1.14 yr (415 days) |
| Earliest precovery date | 6 December 2010 |
| Number of observations | 161 |
| Orbit type | Jupiter family · periodic |
| Aphelion | 10.692 AU |
| Perihelion | 4.952 AU |
| Semi-major axis | 7.822 AU |
| Eccentricity | 0.3669 |
| Orbital period | 21.88 years |
| Inclination | 6.309° |
| 10.082° | |
| Argument of periapsis | 342.120° |
| Last perihelion | 24 July 2010 |
| TJupiter | 2.933 |
| Jupiter MOID | 0.001862 AU (278,600 km) |
| Physical characteristics[1][4] | |
| (B–V) = 0.89±0.09 (V–R) = 0.42±0.07 | |
| Comet total magnitude (M1) | 6.8 |
| Comet nuclear magnitude (M2) | 12.3 |
| 17.1[3] (2011 apparition) | |
P/2011 P1 (McNaught) was a Jupiter-family comet that passed extremely close to Jupiter on 4 December 2010 and disintegrated by 2012.[4]
Observational history
It was discovered on 1 August 2011 by astronomer Robert H. McNaught at the Siding Spring Observatory in New South Wales, Australia.[5][6][7][8] With an observation arc of 415 days, the comet's nominal orbit solution suggests that its 2010 approach distance was 0.00084 AU (126,000 km; 78,000 mi) from Jupiter's center—well within Jupiter's Roche limit at which the comet would be torn apart by tidal forces.[1][4] The earliest precovery image of the comet was taken by Pan-STARRS 1 on 6 December 2010, two days after the comet's close pass with Jupiter.[2]
See also
References
- ^ a b c "P/2011 P1 (McNaught) – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 14 March 2022.
- ^ a b "P/2011 P1 (McNaught)". Minor Planet Center. Retrieved 14 March 2022.
- ^ "Observation list for P/2011 P1". COBS – Comet OBServation database. Retrieved 7 September 2025.
- ^ a b c P. P. Korsun; O. V. Ivanova; V. L. Afanasiev; I. V. Kulyk (2016). "Distant Jupiter family Comet P/2011 P1 (McNaught)". Icarus. 266: 88–95. arXiv:2101.04190. Bibcode:2016Icar..266...88K. doi:10.1016/j.icarus.2015.11.017. S2CID 124820025.
- ^ D. W. Green (5 August 2011). "Comet P/2011 P1 (McNaught)". Central Bureau Electronic Telegrams. 2779. Bibcode:2011CBET.2779....1M.
- ^ D. W. Green (1 September 2011). "Comet P/2011 P1 (McNaught)". IAU Circular. 9223. Bibcode:2011IAUC.9223....1M.
- ^ G. V. Williams (4 August 2011). "MPEC 2011-P19: Comet P/2011 P1 (McNaught)". Minor Planet Electronic Circulars. Bibcode:2011MPEC....P...19M.
- ^ G. V. Williams (8 November 2011). "MPEC 2011-V32: Comet P/2011 P1 (McNaught)". Minor Planet Electronic Circulars. Bibcode:2011MPEC....V...32W.
External links
- Jupiter vs. Comet P/2011 P1: No Contest, Gareth Williams, Minor Planet Center, 29 August 2011 (archived)
- P/2011 P1 (McNaught), Seiichi Yoshida, updated 6 April 2013
- P/2011 P1 at the JPL Small-Body Database