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Discovery[1] | |
---|---|
Discovered by | All Sky Automated Survey for SuperNovae (ASAS-SN) |
Discovery site | Cerro Tololo Observatory, Chile |
Discovery date | 7 July 2018 |
Orbital characteristics[2] | |
Epoch | 26 February 2020 (JD 2458905.5) |
Observation arc | 1,421 days (3.89 years) |
Number of observations | 4653 |
Perihelion | 3.125 AU |
Semi-major axis | –17,021.93 AU |
Eccentricity | 1.00018 |
Inclination | 77.530° |
25.258° | |
Argument of periapsis | 24.397° |
Last perihelion | 10 November 2019 |
TJupiter | 0.474 |
Earth MOID | 2.1943 AU |
Jupiter MOID | 1.6361 AU |
Physical characteristics | |
Comet total magnitude (M1) | 9.6 |
11.0 (2019 apparition) |
C/2018 N2 (ASASSN) is the second of two comets discovered by the All Sky Automated Survey for SuperNovae after C/2017 O1. It is a hyperbolic comet that reached perihelion in November 2019, and as a result, it may never return to the inner Solar System.