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101P/Chernykh[7] is a periodic comet which was first discovered on 19 August 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]

Difference in perihelion date for fragment A+B
Year Horizons
difference
2005 1 day
2020 18 days
2034 43 days

References

  1. ^ a b B. G. Marsden (29 August 1977). "Possible Comet". IAU Circular. 3100. Retrieved 22 March 2025.
  2. ^ Horizons output. "Observer Table for Comet 101P/Chernykh-B". Retrieved 3 July 2020. (Observer Location:@sun)
  3. ^ "Horizons Batch for 101P/Chernykh-B (90000941) on 2034-Feb-21" (last obs: 2006-03-19). JPL Horizons. Archived from the original on 6 July 2023. Retrieved 6 July 2022. (JPL#5 Soln.date: 2017-Jun-08)
  4. ^ "101P/Chernykh Orbit". Minor Planet Center. Retrieved 22 March 2025.
  5. ^ a b c "101P/Chernykh – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 25 October 2008.
  6. ^ a b c "101P/Chernykh-B – JPL Small-Body Database Lookup". ssd.jpl.nasa.gov. Jet Propulsion Laboratory. Retrieved 3 July 2020.
  7. ^ "Periodic Comet Numbers". Minor Planet Center. Archived from the original on 6 November 2010. Retrieved 7 November 2010.
  8. ^ G. W. Kronk. "101P/Chernykh". Cometography.com. Archived from the original on 27 October 2010. Retrieved 9 November 2010.
  9. ^ D. W. Green (21 November 1991). "Periodic Comet Chernykh (1991o)". IAU Circular. 5391. Retrieved 25 October 2008.
  10. ^ "101P-B @ epoch 2022-Jan-21". JPL Horizons. Retrieved 8 July 2023.
For 101P/Chernykh-B


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


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