Comets - C/2020 S3 (Erasmus) - CK20S030
Type Periodic Perihelion Date 12 December 2020 Perihelion Distance (q) 0.4 Aphelion Distance (Q) 360 Period (Years) 2,418 Eccentricity (e) 1.00 Inclination (i) 19.9 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 28 December 2020
Nicolas Erasmus of the ATLAS (Asteroid Terrestrial-impact Last Alert System) team discovered an 18th magnitude comet in images taken with the 0.5m Schmidt at Mauna Loa on 17 September 2020. Unfortunately it is not an optimum apparition, as the comet is in conjunction when brightest and will remain at a poor elongation after perihelion. It has a rather faint absolute magnitude and so may not survive perihelion. It entered the SOHO LASCO C3 field on 18 December 2020, showing a strong central condensation and a tail. Date 10x10 mag Error Kphot mag Coma ' 26-Oct-20 14.31 0.01 10.9 4.3 30-Oct-20 13.71 0.05 10.2 3.4