C/2021 J1 (Maury-Attard)
Discovery | |
---|---|
Discovered by | A. Maury G. Attard |
Discovery date | 2021-05-09 |
Orbital characteristics A | |
Observation arc | 29 days |
Perihelion | 1.74 AU[1] |
Eccentricity | 0.933 |
Orbital period | 135±2 years |
Inclination | 92.7° |
Last perihelion | 19 February 2021 |
Next perihelion | mid-2152?[2] |
C/2021 J1 (Maury-Attard) is a Halley-type comet discovered on May 9, 2021, by French amateur astronomers Alain Maury and Georges Attard[3][4] with the MAP (Maury/Attard/Parrott) observation program.[5][6] It is the first comet discovered with the synthetic tracking technique (using TYCHO software). When it was discovered, it had a magnitude of 19.
It only has a 29 day observation arc.[1] It came to perihelion on 19 February 2021. It can be crudely estimated that the next perihelion will occur around mid-2152, but by then the position of the comet along its orbit will have a 3-sigma uncertainty of 1 billion km (6.7 AU).[2]
References[]
- ^ a b "JPL Small-Body Database Browser: C/2021 J1 (Maury-Attard)". Jet Propulsion Laboratory. Retrieved September 30, 2021.
- ^ a b "Horizons Batch for C/2021 J1 (Maury-Attard) around 2152" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved October 1, 2021. (JPL#3/Soln.date: 2021-Sep-04)
- ^ "ALPO COMET NEWS FOR MAY 2021". Cloudy Nights. Retrieved July 13, 2021.
- ^ "New Comet C/2021 J1 (Maury-Attard)". Comet Observation Database.
- ^ Feldmann, Jean-Baptiste. "C/2021 J1 Maury-Attard, la comète française inespérée". CIELMANIA : le blog de Jean-Baptiste FELDMANN, photographe du ciel. Retrieved July 13, 2021.
- ^ "MAP history and description". San Pedro de Atacama Celestial Explorations. Retrieved July 13, 2021.
Categories:
- Cometary object articles
- Comet stubs
- Astronomical objects discovered in 2021
- Comets in 2021