261P/Larson (0261P)

Type: Periodic Perihelion date: 27 December 2025 Perihelion distance (q): 2.0 Aphelion distance (Q) : 5.0 Period (years): 6.5 Eccentricity (e): 0.42 Inclination (i): 6.1 JPL orbit diagram COBS lightcurve Atlas 261P/Larson = 2005 N3 = 2012 K4 Steve Larson discovered a 20th magnitude comet during the course of the Mt Lemon Survey on 5 July 2005. The comet was recovered by Nick Howes, Giovanni Sostero and Ernesto Guido on 22 May 2012 using the 2.0-m Faulkes Telescope North when it was 20th magnitude. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 01-Jul-19 16.77 0.05 15.4 0.6 14-Jul-19 16.86 0.06 15.4 0.4 12-Aug-19 16.87 0.08 15.1 0.5 27-Aug-19 17.08 0.04 15.8 0.3 03-Sep-19 17.15 0.02 15.4 0.4 10-Sep-19 17.32 0.03 16.5 0.4 07-Oct-19 17.36 0.02 15.4 0.5 23-Oct-19 17.57 0.02 16.4 0.4 30-Oct-19 17.55 0.04 16.4 0.4 19-Nov-19 17.58 0.04 16.4 0.4 27-Nov-19 17.80 0.04 16.0 0.4 20-Dec-19 18.60 0.04 16.9 0.3 27-Dec-19 19.02 0.08 17.6 0.2 14-Jan-20 19.53 0.09 18.1 0.2