101P/Chernykh
 Fragment A of 101P/Chernykh imaged from the Zwicky Transient Facility on 2 February 2020 | |
| Discovery[1] | |
|---|---|
| Discovered by | Nikolai S. Chernykh |
| Discovery site | Crimean Astrophysical Observatory |
| Discovery date | 19 August 1977 |
| Designations | |
| P/1977 Q1, P/1991 L1 | |
| |
| Orbital characteristics[4][5][6] | |
| Epoch | 17 October 2024 (JD 2460600.5) |
| Observation arc | 44.53 years |
| Number of observations | 1,932 |
| Aphelion | 9.281 AU (A) 9.249 AU (B) |
| Perihelion | 2.349 AU (A) 2.351 AU (B) |
| Semi-major axis | 5.815 AU |
| Eccentricity | 0.5962 |
| Orbital period | 14.02 years (A) 13.97 years (B) |
| Inclination | 5.049° |
| 116.14° | |
| Argument of periapsis | 277.93° |
| Mean anomaly | 122.19° |
| Last perihelion | 12 January 2020 (A) 31 January 2020 (B)[2] |
| Next perihelion | 10 January 2034 (A) 21 February 2034 (B)[3] |
| TJupiter | 2.584 (A) 2.588 (B) |
| Earth MOID | 1.338 AU (A) 1.362 AU (B) |
| Jupiter MOID | 0.158 AU (A) 0.095 AU (B) |
| Physical characteristics[5][6] | |
| Dimensions | 5.6 km (3.5 mi) (A) |
| Comet total magnitude (M1) | 13.7 (A) 13.0 (B) |
101P/Chernykh[7] is a periodic comet which was first discovered on August 19, 1977, by Nikolaj Stepanovich Chernykh.[1][8] It will next come to perihelion (closest approach to the Sun) in 2034.
In April 1991, the comet was observed to split in two. Zdenek Sekanina, from JPL, concluded that the comet split at a distance of 3.3 AU (490 million km) from the Sun.[9]
The primary nucleus is 5.6 km (3.5 mi) in diameter and was last observed in 2022.[5] Fragment B has not been observed since 2006.[6] As of epoch 2022, fragment B takes 21 days longer to orbit the Sun.[10]
| Year | Horizons difference |
|---|---|
| 2005 | 1 day |
| 2020 | 18 days |
| 2034 | 43 days |
References
[edit]- ^ a b B. G. Marsden (29 August 1977). "Possible Comet". IAU Circular. 3100. Retrieved 22 March 2025.
- ^ Horizons output. "Observer Table for Comet 101P/Chernykh-B". Retrieved 2020-07-03. (Observer Location:@sun)
- ^ "Horizons Batch for 101P/Chernykh-B (90000941) on 2034-Feb-21" (last obs: 2006-03-19). JPL Horizons. Archived from the original on 2023-07-06. Retrieved 2022-07-06. (JPL#5 Soln.date: 2017-Jun-08)
- ^ "101P/Chernykh Orbit". Minor Planet Center. Retrieved 22 March 2025.
- ^ a b c "101P/Chernykh – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 25 October 2008.
- ^ a b c "101P/Chernykh-B – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 3 July 2020.
- ^ "Periodic Comet Numbers". Minor Planet Center. Archived from the original on 6 November 2010. Retrieved 7 November 2010.
- ^ G. W. Kronk. "101P/Chernykh". Cometography.com. Archived from the original on 27 October 2010. Retrieved 9 November 2010.
- ^ D. W. Green (21 November 1991). "Periodic Comet Chernykh (1991o)". IAU Circular. 5391. Retrieved 25 October 2008.
- ^ "101P-B @ epoch 2022-Jan-21". JPL Horizons. Retrieved 2023-07-08.
External links
[edit]- 101P/Chernykh – Seiichi Yoshida @ aerith.net
- 101P at Gary W. Kronk's Cometography
- 101P/Chernykh at the JPL Small-Body Database
- For 101P/Chernykh-B
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