C/2013 D1 (Holvorcem)

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Type: Periodic Perihelion date: 13 April 2013 Perihelion distance (q): 2.5 Aphelion distance (Q) : 20.0 Period (years): 38 Eccentricity (e): 0.78 Inclination (i): 10.1 JPL orbit diagram COBS lightcurve Paulo Holvorcem discovered a comet on 16 February 2013 with the 0.41m astrograph at the Tenagra II Observatory in Arizona. At discovery the comet was around 19th magnitude. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 02-Mar-13 17.72 0.06 17.3 0.3 13-Mar-13 17.51 0.04 16.8 0.3 03-Apr-13 18.02 0.03 17.0 0.2 17-Apr-13 18.23 0.05 17.4 0.2