101P/Chernykh

Last updated
101P/Chernykh
101P-A 2020-02-02 image ZTF-sso-449-zr-size-5.6arcmin.png
Discovery
Discovered by Nikolai Stepanovich Chernykh
Discovery dateAugust 19, 1977
Designations
1978 IV; 1992 II
Orbital characteristics
Epoch January 21, 2022 [1]
Aphelion 9.266 AU
Perihelion 2.344 AU
Semi-major axis 5.805 AU
Eccentricity 0.5962
Orbital period 13.99 yr (5109 days) [1]
(5130 days for 101P-B) [2]
Inclination 5.052°
Last perihelionJanuary 12, 2020 (A) [1]
January 31, 2020 (B) [3]
December 25, 2005 (A) [4]
December 24, 2005 (B) [5]
Next perihelion2034-Jan-10 (A) (Horizons)
2034-Feb-21 (B) (Horizons) [6]

101P/Chernykh [7] is a periodic comet which was first discovered on August 19, 1977, by Nikolaj Stepanovich Chernykh. [8] It will next come to perihelion (closest approach to the Sun) in 2034.

In 1991, 101P/Chernykh was observed to split. Zdenek Sekanina, from JPL, concluded that the comet split in April 1991, when 3.3 AU from the Sun. [9]

The primary nucleus is 5.6 km (3.5 mi) in diameter and was last observed in 2022. [10] Fragment B has not been observed since 2006. [5] As of epoch 2022, fragment B takes 21 days longer to orbit the Sun. [2]

Difference in perihelion date for fragment A+B
Year Horizons
difference
20051 day
202018 days
203443 days

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References

  1. 1 2 3 MPC
  2. 1 2 "101P-B @ epoch 2022-Jan-21". JPL Horizons . Retrieved 2023-07-08.
  3. Horizons output. "Observer Table for Comet 101P/Chernykh-B" . Retrieved 2020-07-03. (Observer Location:@sun)
  4. Syuichi Nakano (2005-12-14). "101P/Chernykh - A (NK 1293)". OAA Computing and Minor Planet Sections. Retrieved 2020-07-11.
  5. 1 2 "JPL Small-Body Database Browser: 101P/Chernykh-B" . Retrieved 2020-07-03.
  6. "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)
  7. "Periodic Comet Numbers". Minor Planet Center. Archived from the original on November 6, 2010. Retrieved November 7, 2010.
  8. Kronk, Gary W. "101p/Chernykh". cometography.com. Archived from the original on 27 October 2010. Retrieved November 9, 2010.
  9. Daniel W. E. Green (1991-11-21). "IAUC 5391: 1991o". Minor Planet Center. Retrieved 2008-10-25.
  10. "JPL Small-Body Database Browser: 101P/Chernykh" . Retrieved 2008-10-25.
For 101P/Chernykh-B
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