P/2011 P1 (McNaught) was a Jupiter-family comet that passed extremely close to Jupiter on 4 December 2010 and disintegrated by 2012.[4] 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 astronomical units (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.[3][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]
| Discovery | |
|---|---|
| Discovered by | Robert H. McNaught |
| Discovery date | 1 August 2011 |
| Orbital characteristics[1] | |
| Epoch | 12 August 2011 (JD 2455793.5) |
| Observation arc | 1.14 yr (415 days) |
| Number of observations | 161[2] |
| 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 yr (7,990 days) |
| Inclination | 6.309° |
| 10.082° | |
| Argument of periapsis | 342.120° |
| TJupiter | 2.933 |
| Jupiter MOID | 0.001862 AU (278,600 km) |
| Comet total magnitude (M1) | 6.2±1.0[3] |
| Comet nuclear magnitude (M2) | 12.3±0.9 |
See also
editReferences
edit- ^ "P/2011 P1 (McNaught)". Small-Body Database Lookup. ssd.jpl.nasa.gov. Retrieved 9 June 2024.
- ^ a b "P/2011 P1 (McNaught)". Minor Planet Center. Retrieved 14 March 2022.
- ^ a b "JPL Small-Body Database Browser: P/2011 P1 (McNaught)" (2012-01-15 last obs.). Jet Propulsion Laboratory. Retrieved 14 March 2022.
- ^ a b Korsun, Pavlo P.; Ivanova, Oleksandra V.; Afanasiev, Viktor L.; Kulyk, Irina V. (March 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.
- ^ Masi, G.; Masi, U.; Luccone, G.; McNaught, R. H.; Ahern, J. D.; Beshore, E. C.; Boattini, A.; Garradd, G. J.; Gibbs, A. R.; Grauer, A. D.; Hill, R. E.; Kowalski, R. A.; Larson, S. M.; Sato, H.; Holmes, R.; Foglia, S.; Vorobjov, T.; Williams, G. V. (4 August 2011). "MPEC 2011-P19 : COMET P/2011 P1 (MCNAUGHT)". Minor Planet Electronic Circulars. 2011-P19. Minor Planet Center. Bibcode:2011MPEC....P...19M. Retrieved 14 March 2022.
- ^ Green, Daniel W. E. (5 August 2011). "Comet P/2011 P1 (McNAUGHT)". Central Bureau Electronic Telegrams. 2779. Central Bureau for Astronomical Telegrams: 1. Bibcode:2011CBET.2779....1M. Retrieved 14 March 2022.
- ^ Green, Daniel W. E. (1 September 2011). "Comet P/2011 P1 (McNaught)". Central Bureau Electronic Telegrams. 9223 (1). Central Bureau for Astronomical Telegrams: 1. Bibcode:2011IAUC.9223....1M. Retrieved 14 March 2022.
- ^ Williams, G. V. (8 November 2011). "MPEC 2011-V32 : COMET P/2011 P1 (MCNAUGHT)". Minor Planet Electronic Circulars. 2011-V32. Minor Planet Center. Bibcode:2011MPEC....V...32W. Retrieved 14 March 2022.
External links
edit- 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
