Comets - C/2018 F1 Grauer - CK18F010
Type Periodic Perihelion Date 14 December 2018 Perihelion Distance (q) 3.0 Aphelion Distance (Q) 633 Period (Years)   5,667 Eccentricity (e)   0.99 Inclination (i)   46.1 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 6 May 2018
COMETS COMETS
DEEP SKY DEEP SKY
Al Grauer discovered a comet of 19th magnitude in Mt Lemmon Survey images taken with the 1.5m reflector on 17 March 2018. It was independently discovered a few hours later in PanSTARRS images and they also found pre-discovery images from 22 December 2017, 17 January and 10 March 2018. Date 10x10 mag Error Kphot mag Coma ' 07-Apr-18 18.79 0.18 18.6 0.2 06-May-18 18.80 0.10 18.6 0.2