C/2014 Q1 (PANSTARRS)

DEPARTED

Type: Periodic Perihelion date: 6 July 2015 Perihelion distance (q): 0.3 Aphelion distance (Q) : 2,265 Period (years): 38,118 Eccentricity (e): 1.00 Inclination (i): 43.1 JPL orbit diagram COBS lightcurve An 18th magnitude comet was discovered in PanSTARRS 1 images taken with the 1.8m Ritchey-Chretien on 17 August 2014. Internet reports suggest that the comet was around 6th magnitude in late June 2015. The apparition was a poor one for northern hemisphere observers, but it was visible in the southern hemisphere. Willian Souza observed it as it emerged from perihelion, making it 5th magnitude with a short tail in mid July. By early August it had faded to 7.5 and mid month it was 9th magnitude. Observations (VEMag = visual equivalent magnitude) Date 10x10 mag Error VEmag Coma ' 18-Aug-14 17.16 0.06 17.0 0.2 25-Aug-14 16.88 0.03 16.6 0.2 28-Aug-14 16.65 0.03 01-Sep-14 16.77 0.03 16.4 0.2 05-Sep-14 16.70 0.06 16.5 0.2 12-Sep-14 16.62 0.03 16.4 0.2 17-Sep-14 16.30 0.09 20-Sep-14 16.49 0.02 16.3 0.2 26-Sep-14 16.37 0.03 16.0 0.2 10-Oct-14 16.46 0.05 16.0 0.2 15-Oct-14 16.41 0.02 16.0 0.3 20-Oct-14 16.48 0.04 16.2 0.2 25-Oct-14 16.35 0.01 15.4 0.3 28-Oct-14 16.28 0.04 14.5 0.3 09-Nov-14 16.30 0.02 15.4 0.4 12-Nov-14 16.30 0.03 15.8 0.4 16-Nov-14 16.26 0.03 15.8 0.3 20-Nov-14 16.36 0.02 15.9 0.3 23-Nov-14 16.31 0.02 15.8 0.2 26-Nov-14 16.32 0.04 15.8 0.3 01-Dec-14 16.33 0.06 15.7 0.2 04-Dec-14 16.30 0.05 15.9 0.2 07-Dec-14 16.22 0.04 15.9 0.2 14-Dec-14 16.19 0.04 14.5 0.3 17-Dec-14 16.13 0.03 15.4 0.3 20-Dec-14 16.14 0.04 15.6 0.3 26-Jul-15 10.26 0.01 7.1 2.6 08-Aug-15 12.13 0.01 8.9 3.1