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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, 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 | A. Maury G. Attard |
| Discovery date | 2021-05-09 |
| Orbital characteristics | |
| Observation arc | 124 days |
| Perihelion | 1.741 AU[1] |
| Eccentricity | 0.934 |
| Orbital period | 135±2 years |
| Inclination | 92.72° |
| Last perihelion | 19 February 2021 |
| Next perihelion | early 2154[2] |
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]
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