Comets - 2I (C/2019 Q4 Borisov) - 0002I
Type Interstellar Perihelion Date 8 December 2019 Perihelion Distance (q) 2.0 Aphelion Distance (Q) n/a Period (Years) n/a Eccentricity (e) 3.4 Inclination (i) 44.1 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 30 March 2020
COMETS COMETS
DEEP SKY DEEP SKY
2019 Q4 (2I/Borisov) Gennady Borisov discovered a comet in images taken with the MARGO 0.65-m f/1.5 astrograph at Nauchnij, Crimea on 30 August 2019. It was placed on the PCCP as gb00234. Continued observation and analysis of this object confirmed its hyperbolic orbit and interstellar origin. The Minor Planet Center has therefore assigned the permanent interstellar designation 2I to it. The IAU Working Group for Small Body Nomenclature has decided to retain the name Borisov for the permanent designation. Date 10x10 mag Error Kphot mag Coma ' 31-Oct-19 16.72 0.05 14.5 0.5 27-Nov-19 16.66 0.04 14.9 0.6 04-Dec-19 16.78 0.03 14.7 0.7 23-Dec-19 16.61 0.05 15.0 0.7 04-Jan-20 16.87 0.11 15.3 0.6
DEPARTED