226P/Pigott–LINEAR–Kowalski

226P/Pigott–LINEAR–Kowalski is a Jupiter family periodic comet with an orbital period of 7.3 years. It was discovered by Edward Pigott on 19 November 1783, but was subsequently lost, until it was recovered on 5 January 2003 by Lincoln Near-Earth Asteroid Research (LINEAR).[2] It will next come to perihelion on 27 December 2023 at about apparent magnitude 15.[3]

226P/Pigott–LINEAR–Kowalski
Comet 226P/Pigott–LINEAR–Kowalski on 8 September 2016 by NEOWISE
Discovery
Discovered byEdward Pigott
Discovery date19 November 1783
Designations
P/1783 W1, P/2003 A1, P/2009 R2
Orbital characteristics[1]
Epoch16 February 2017
Aphelion5.764 AU
Perihelion1.776 AU
Semi-major axis3.770 AU
Eccentricity0.529
Orbital period7.32 years
Inclination44.004°
54.007°
Argument of
periapsis
341.12°
Last perihelion5 September 2016
Next perihelion2023-Dec-27
Earth MOID0.818 AU
Jupiter MOID0.075 AU
Comet total
magnitude
(M1)
11.9 [1]
Comet nuclear
magnitude (M2)
15.6

The comet was discovered by English astronomer Edward Pigott from York, England, on 19 November 1783. The comet was located in the constellation of Cetus and he described it as a nebula with faint nucleus not visible in a good opera glass. He continued to follow the comet and noted that by 26 November it had dimmed. The comet was observed by Pierre Méchain on 26 November and Charles Messier the next day. Charles Messier mentioned that the comet was not visible to the naked eye, and described the comet as seen though a refractor as extremely faint nebulosity about 4 arcmin across with strong central condensation. The comet continued to dim and was last observed on 21 December 1783.[2] The initial orbits calculated assumed a parabolic orbit, but it didn't fit well enough the observed positions. An elliptical orbit was calculated by Christian Heinrich Friedrich Peters in 1860 indicated an orbital period of 5.89 years.[2]

The comet was recovered on 5 January 2003 by LINEAR. It was thought originally that is was an asteroid but further observations showed it was diffuse, having a coma 8 arcseconds across. Its apparent magnitude was estimated to be 18.4 at discovery. It was named C/2003 A1.[4] During the next apparition the comet was recovered by Richard Kowalski of Catalina Sky Survey on 10 September 2009, with an apparent magnitude of around 18. The comet was then identified as the same comet as P/1783 W1 and 2003 A1.[5] During the 2016 apparition it brightened up to an apparent magnitude of 13.9.[6]

References

  1. "Small-Body Database Lookup: 226P/Pigott-LINEAR-Kowalski". ssd.jpl.nasa.gov. Retrieved 26 March 2023.
  2. Kronk, Gary. "226P/Pigott-LINEAR-Kowalski". cometography.com. Retrieved 21 May 2023.
  3. Seiichi Yoshida (2023-08-01). "226P/Pigott-LINEAR-Kowalski". Seiichi Yoshida's Comet Catalog. Retrieved 2023-08-16.
  4. Green, Daniel (8 January 2003). "IAUC 8044: 2003E; C/2003 A1; 2001 QR_322". International Astronomical Union Circular.
  5. Marsden, Brian (11 September 2009). "MPEC 2009-R40 : COMET P/1783 W1 = 2003 A1 = 2009 R2 (PIGOTT-LINEAR-KOWALSKI)". minorplanetcenter.net.
  6. "Weekly Information about Bright Comets (2016 Nov. 26: North)". www.aerith.net. Retrieved 21 May 2023.
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