427P/ATLAS (0427P)

Type: Periodic Perihelion date: 19 March 2023 Perihelion distance (q): 2.2 Aphelion distance (Q) : 4.2 Period (years): 5.6 Eccentricity (e): 0.31 Inclination (i): 11.9 JPL orbit diagram COBS lightcurve PK17S050 = 0427P An 18th magnitude comet was discovered in images taken with the 0.5m Schmidt at Haleakala in September 2017 by the ATLAS (Asteroid Terrestrial-impact Last Alert System) team. It had been posted on the PCCP as A104e5G. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 29-Sep-17 17.88 0.04 17.7 0.2 11-Oct-17 17.40 0.06