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.

101P/Chernykh
Discovery
Discovered byNikolai Stepanovich Chernykh
Discovery dateAugust 19, 1977
Designations
1978 IV; 1992 II
Orbital characteristics
EpochJanuary 21, 2022[1]
Aphelion9.266 AU
Perihelion2.344 AU
Semi-major axis5.805 AU
Eccentricity0.5962
Orbital period13.99 yr (5109 days)[1]
(5130 days for 101P-B)[2]
Inclination5.052°
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]

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
2005 1 day
2020 18 days
2034 43 days

References

edit
  1. ^ a b c MPC
  2. ^ a b "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. ^ a b "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.
edit
For 101P/Chernykh-B


Numbered comets
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100P/Hartley
101P/Chernykh Next
102P/Shoemaker