486P/Leonard (0486P)

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Type: Periodic Perihelion date: 5 May 2018 Perihelion distance (q): 2.3 Aphelion distance (Q) : 5.0 Period (years): 6.9 Eccentricity (e): 0.36 Inclination (i): 2.2 JPL orbit diagram COBS lightcurve Atlas 486P/Leonard = 2018 L5 = 2024 H1 Greg Leonard discovered a comet of 19th magnitude in Mt Lemmon Survey images taken with the 1.5m reflector on 14 June 2018. It was placed on the PCCP as ZLB3D4B. Erwin Schwab recovered comet 2018 L5 at 21st magnitude in images taken with the 1.0-m reflector at the ESA Optical Ground Station at Tenerife on 18 April 2024. He confirmed the recovery with images taken by the Sutherland LCO 1-m Schmidt on 21 April. It passed 0.4 au from Jupiter in July 1978 and September 2014. There is a possible identification with 1937 BG. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 21-Aug-18 19.02 0.11 18.7 0.2 04-Sep-18 18.55 0.05 17.5 0.3 01-Oct-18 18.26 0.07 17.8 0.2 11-Oct-18 18.70 0.06 18.1 0.2 30-Jun-25 18.8 0.4 25-Jul-25 18.5 0.2 05-Aug-25 18.2 0.3 20-Aug-25 18.1 0.2 03-Sep-25 18.2 0.2 25-Sep-25 16.9 0.3 06-Dec-25 19.5 0.2