Comets - 362P (Spacewatch) - 0362P
Type Outer main belt asteroid Perihelion Date 21 August 2016 Perihelion Distance (q) 2.9 Aphelion Distance (Q) 5.2 Period (Years)   7.9 Eccentricity (e)   0.28 Inclination (i)   15.1 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 6 May 2018
COMETS COMETS
DEEP SKY DEEP SKY
This Outer Main-belt (Hilda group) asteroid was discovered by Spacewatch on 8 April 2008 at Kitt Peak. On 3 July 2017, Gareth Williams reported on MPEC 2017-N50 : "G. J. Leonard, using the MLS 1.5-m reflector, reported a comet candidate, described as having a coma of 7"-8" diameter and a broad ~15"-long tail in P.A. ~260 deg. This object was linked by MPC automated routines with the numbered Hilda minor planet (457175). Follow-up observations by D. C. Fuls with the MLS 1.0-m reflector confirm the cometary nature: very bright coma at least 8" diameter, with a very broad 12"-long tail in P.A. 265 deg. Additional follow-up observation by Leonard show as 10" coma and a broad, diffuse 15"-long tail in P.A. ~260 deg. Further observations of this object are encouraged to clarify the nature of this cometary activity." The comet was perturbed from a Centaur type orbit by a close (0.05 au) encounter with Jupiter in 1710. The orbit was further perturbed in September 2011, and the first perihelion since then was in 2016. Date 10x10 mag Error Kphot mag Coma ' 18-Jul-17 17.2 0.04 14.3 0.6 25-Jul-17 17.34 0.07 16.2 0.4 29-Jul-17 17.26 0.04 16.4 0.6 14-Aug-17 17.34 0.02 16.2 0.4 17-Aug-17 17.43 0.04 16.3 0.4 20-Aug-17 17.37 0.06 16.7 0.4 24-Aug-17 17.34 0.06 16.3 0.5 13-Sep-17 17.78 0.07 16.1 0.5 18-Sep-17 17.89 0.08 16.5 0.4 21-Sep-17 17.99 0.09 16.8 0.4 25-Sep-17 17.98 0.06 17.2 0.4 10-Oct-17 18.21 0.07 16.8 0.3
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