 Sequence of images shows Comet 252P/LINEAR near Earth.[1] | |
| Discovery | |
|---|---|
| Discovered by | Lincoln Near-Earth Asteroid Research (LINEAR) |
| Discovery date | 2000/04/07 |
| Orbital characteristics | |
| Epoch | 2015-Aug-01 (JD 2457235.5) |
| Observation arc | 16 years |
| Aphelion | 5.1079 AU |
| Perihelion | 0.9961 AU |
| Semi-major axis | 3.0520 AU |
| Eccentricity | 0.6736 |
| Orbital period | 5.33 years (1947 days) |
| Inclination | 10.4046° |
| Last perihelion | 2021/07/11[2] 2016/03/15 2010/11/13 |
| Next perihelion | 2026-Nov-07[3] |
| TJupiter | 2.8 |
| Earth MOID | 0.0138 AU (2,060,000 km) |
| Jupiter MOID | 0.1973 AU (29,520,000 km)[4] |
| Physical characteristics | |
| Dimensions | 100-400 meters |
| Comet total magnitude (M1) | 18.9 ± 1 |
| Comet nuclear magnitude (M2) | 22.7 ± 0.9 |
Comet 252P/LINEAR is a periodic comet and near-Earth object discovered by the LINEAR survey on April 7, 2000. The comet is a Jupiter family comet, meaning that it passes quite close to the orbit of Jupiter.[4]
At some point, 252P/LINEAR separated from a second object designated P/2016 BA14 (PANSTARRS), that was discovered in January 2016.[5][6] The nucleus of P/2016 BA14 is 1,000 meters wide, which is larger than the nucleus of 252P, which is estimated to be 600 meters across, but it is less active.[7] 252P/LINEAR approached as close as 0.0356 AU (13.9 LD) to Earth on 21 March 2016.[8]
- ^ "Comet 252P/LINEAR". Retrieved 16 May 2016.
- ^ Cite error: The named reference
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- ^ Agle, DC; Brown, Dwayne; Cantillo, Laurie (18 March 2016). "A 'Tail' of Two Comets". NASA. Retrieved 18 March 2016.
- ^ Li, Jian-Yang; Kelley, Michael S. P.; Samarasinha, Nalin H.; Farnocchia, Davide; Mutchler, Max J.; Ren, Yanqiong; Lu, Xiaoping; Tholen, David J.; Lister, Tim; Micheli, Marco (7 September 2017). "The Unusual Apparition of Comet 252P/2000 G1 (LINEAR) and Comparison with Comet P/2016 BA 14 (PanSTARRS)". The Astronomical Journal. 154 (4): 136. arXiv:1708.05190. doi:10.3847/1538-3881/aa86ae.
- ^ "NEO Earth Close Approaches". Archived from the original on March 7, 2014. Retrieved March 4, 2014.