292P/Li (0292P)

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Type: Periodic Perihelion date: 30 January 2014 Perihelion distance (q): 2.5 Aphelion distance (Q) : 9.7 Period (years): 15.1 Eccentricity (e): 0.59 Inclination (i): 24.3 JPL orbit diagram COBS lightcurve 292P/Li = 1998 Y2 = 2013 O1 Weidong Li, Department of Astronomy, University of California at Berkeley, reported his discovery of a comet in the course of the Lick Observatory Supernova Search (cf. IAUC 6627; with the participation of M. Papenkova, E. Halderson, M. Modjaz, T. Shefler, J. Y. King, R. R. Treffers and A. V. Filippenko). The object was found automatically by the Katzman Automatic Imaging Telescope in the field of NGC 1041, but it was immediately recognized as a comet by Li, who then used the equipment to make a deliberate confirmatory observation, as well as follow-up observations on the following night. [IAUC 7075, 28 December 1998]. The comet is periodic with a period of about 15.2 years. Hidetaka Sato imaged comet 1998 Y2 (P/Li) on 9 May 2013 with the 0.51m astrograph of the iTelescope at Siding Spring, but confirmation of the recovery was not made until 16 July when it was imaged by M Masek with the 0.3m reflector at the Pierre Auger Observatory, Malargue. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 17-Aug-13 18.42 0.12 18.1 0.3 29-Aug-13 18.14 0.12 17.8 0.2 11-Sep-13 18.04 0.17 17.8 0.2 24-Sep-13 17.57 0.07 17.4 0.2 04-Oct-13 17.61 0.04 17.1 0.3 14-Oct-13 16.70 0.03 15.8 0.2 24-Oct-13 16.59 0.04 16.0 0.2 12-Nov-13 16.43 0.06 13.9 0.2 22-Nov-13 16.39 0.04 15.6 0.3 06-Dec-13 16.47 0.06 15.9 0.2 16-Dec-13 16.55 0.03 15.6 0.4 26-Dec-13 16.48 0.01 15.7 0.4 05-Jan-14 16.54 0.02 15.9 0.4 06-Jan-14 16.53 0.04 15.7 0.4 01-Feb-14 16.71 0.03 15.7 0.3 11-Feb-14 16.73 0.10 16.0 0.3 26-Feb-14 16.73 0.05 16.2 0.3