C/2021 J1 (Maury–Attard)
Halley-type comet From Wikipedia, the free encyclopedia
C/2021 J1 (Maury–Attard) is a Halley-type comet discovered on 9 May 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, made possible with the Tycho Tracker commercial software developed by Daniel Parrott.[5] When it was discovered, it had a magnitude of 19.
| Discovery | |
|---|---|
| Discovered by | Alain Maury Georges Attard |
| Discovery date | 9 May 2021 |
| Orbital characteristics[1] | |
| Epoch | 27 April 2021 (JD 2459331.5) |
| Observation arc | 124 days |
| Number of observations | 106 |
| Aphelion | 51.31 AU |
| Perihelion | 1.741 AU |
| Semi-major axis | 26.53 AU |
| Eccentricity | 0.934 |
| Orbital period | 135±2 years |
| Inclination | 92.719° |
| 88.320° | |
| Argument of periapsis | 147.33° |
| Mean anomaly | 0.479° |
| Last perihelion | 19 February 2021 |
| Next perihelion | ~2154[2] |
| TJupiter | 0.120 |
| Earth MOID | 0.826 AU |
| Jupiter MOID | 2.959 AU |
| Comet total magnitude (M1) | 17.1 |
It has a 124 day observation arc.[1] It came to perihelion on 19 February 2021. The next perihelion will be in early 2154.[2]
References
External links
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