Comets - 246P/NEAT - 0246P
Type Periodic Perihelion Date 22 February 2021 Perihelion Distance (q) 2.9 Aphelion Distance (Q) 5.2 Period (Years)   8.1 Eccentricity (e)   0.29 Inclination (i)   16.0 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 10 June 2019
COMETS COMETS
DEEP SKY DEEP SKY
246P/NEAT = 2004 F3 = 2010 V2 On 28 March 2004 NEAT discovered a 17th magnitude comet. The observations show that it passed within 0.37 AU of Jupiter in July 2001, which reduced the perihelion distance. It reached perihelion at 2.86 AU in early January 2005. The comet passed about 0.37 AU from Jupiter in July 2001, causing the perihelion distance to decrease. Kazuo Kinoshita calculates that this passage reduced the perihelion distance from 3.8 AU to 2.9 AU. The comet will approach Jupiter again in 2024, when the perihelion will be increased to 3.5 AU. The returns of 2005, 2013 and 2021 are the closest over the last 200 years. The comet should have been bright enough for discovery at earlier returns, which suggests that the change in perihelion distance has enhanced the activity of the comet. The comet was recovered by E. Romas (Rostov-na-Donu, Russia), A. Novichonok (Kondopoga, Russia), and Dmitry Chestnov (Saransk, Russia) on forty stacked 120-s images obtained on 2 November 2010 UT with the 0.5-m f/8.3 Maksutov-Cassegrain reflector at the Kislovodsk Mountain Astronomical Station of Pulkovo Observatory. Gary Hug (Scranton, KS, U.S.A.) found the comet to be slightly diffuse on images taken with a 0.56-m reflector on 3 November. Date 10x10 mag Error Kphot mag Coma ' 28 Mar 13 15.21 0.02 14.4 0.4 10 May 13 15.05 0.02 13.9 0.4 9 Jun 13 15.37 0.06 14.5 0.4 27 Jun 13 15.14 0.04 13.9 0.3 7 Jul 13 14.89 0.02 13.5 0.5 30 Jul 13 14.94 0.02 13.5 0.5 3 Oct 13 16.05 0.02 14.8 0.4 17 Oct 13 16.13 0.03 14.9 0.3 11 Nov 13 15.93 0.02 14.8 0.2 29 May 14 16.78 0.05 15.0 0.2 14 Jun 14 16.96 0.08 16.7 0.2 12 Jul 14 16.84 0.09 16.3 0.2 26 Jul 14 16.68 0.06 15.6 0.2 5 Aug 14 16.59 0.04 15.6 0.2 20 Aug 14 16.50 0.03 15.4 0.3 6 Sep 14 16.36 0.03 15.5 0.2 17 Sep 14 16.39 0.01 15.3 0.4 26 Sep 14 16.37 0.04 15.5 0.3 11 Oct 14 15.96 0.05 12.8 0.2 20 Oct 14 16.55 0.07 15.5 0.3 27 Oct 14 16.61 0.04 15.4 0.3 8 Nov 14 16.71 0.07 15.3 0.2 17 Nov 14 16.76 0.03 15.3 0.2 24 Nov 14 16.86 0.04 15.9 0.3 4 Dec 14 16.86 0.09 16.0 0.2 11 Dec 14 17.04 0.02 16.0 0.3 18 Dec 14 17.10 0.02 15.8 0.3 30 Dec 14 17.24 0.18 14.5 0.2