Comets - C/2014 Q2 (Lovejoy) - CK14Q020
Type Periodic Perihelion Date 30 January 2015 Perihelion Distance (q) 1.3 Aphelion Distance (Q) 1,177.7 Period (Years)   14,312 Eccentricity (e)   1.00 Inclination (i)   80.3 Click for NASA orbit diagram
Hills Observatory: 1 January 2013 to 14 August 2018
COMETS COMETS
DEEP SKY DEEP SKY
The comet was discovered on 17 August 2014 by Terry Lovejoy using a 0.2-meter (8 in) Schmidt-Cassegrain telescope. It was discovered at apparent magnitude 15 in the southern constellation of Puppis. By December 2014, the comet had brightened, making it a small telescope and binoculars target. By mid-December, the comet was visible to the naked eye for experienced observers with dark skies and keen eyesight. On 28−29 December 2014, the comet passed 1/3° from globular cluster Messier 79.[9] In January 2015, it brightened to roughly magnitude 4 and became one of the brightest comets located high in a dark sky since comet C/1995 O1 (Hale- Bopp) in 1997. On 7 January 2015, the comet passed 0.469 AU (70,200,000 km) from Earth. On January 8 the ion tail suffered a disconnection event, which was widely covered by amateur imaging from around the world. The comet came to perihelion (closest approach to the Sun) on 30 January 2015 at a distance of 1.29 AU (193,000,000 km) from the Sun. At perihelion, its water production rate exceeded 20 metric tons per second. C/2014 Q2 originated from the Oort cloud, but is not a dynamically new comet. Before entering the planetary region (epoch 1950), C/2014 Q2 had an orbital period of about 11,000 years with aphelion about 995 AU (1.49×1011 km; 9.25×1010 mi) from the Sun. After leaving the planetary region (epoch 2050), it will have an orbital period of about 8000 years with aphelion of about 800 AU. The comet was observed to release 21 different organic molecules in gas, including ethanol and glycolaldehyde, a simple sugar. The presence of organic molecules suggests that they are preserved materials synthesized in the outskirts of the solar nebula or at earlier stages of the Solar System formation. Date 10x10 mag Error Kphot mag Coma ' 27 Aug 14 14.93 0.01 14.2 0.3 7 Sep 14 14.80 0.02 13.6 0.4 11 Sep 14 14.82 0.02 14.0 0.3 15 Sep 14 14.82 0.02 13.8 0.3 20 Sep 14 14.73 0.01 13.6 0.6 26 Sep 14 14.15 0.02 13.1 0.4 2 Oct 14 13.84 0.03 12.5 0.2 6 Oct 14 13.86 0.02 12.6 0.5 11 Oct 14 13.31 0.03 12.0 0.4 15 Oct 14 13.37 0.01 11.6 0.6 20 Oct 14 13.22 0.01 11.6 0.7 24 Oct 14 13.08 0.02 11.1 0.5 1 Nov 14 12.73 0.01 10.9 0.5 5 Nov 14 12.67 0.03 10.4 0.6 9 Nov 14 12.46 0.01 10.2 0.9 16 Nov 14 12.23 0.04   9.5 1.6 22 Nov 14 12.03 0.02   9.1 4.4 25 Nov 14 11.71 0.01   8.4 4.6 28 Nov 14 11.80 0.01   8.3 4.7 1 Dec 14 11.25 0.02   7.7 4.7 4 Dec 14 11.19 0.04   7.8 4.8 7 Dec 14 11.31 0.01   7.9 4.1 11 Dec 14 10.85 0.01   7.7 7.2 14 Dec 14 10.72 0.01   7.5 6.0 16 Dec 14 10.34 0.05   7.2 5.4 17 Dec 14 10.34 0.03   7.1 8.1 18 Dec 14 10.31 0.02   7.0 7.9 19 Dec 14 10.17 0.05   7.1 8.0 20 Dec 14 10.13 0.04   7.1 7.9 23 Dec 14   9.91 0.02   6.9 9.0 25 Dec 14   9.86 0.04   6.8 8.9 27 Dec 14   9.59 0.02   6.5 9.3 29 Dec 14   9.59 0.03   6.5 9.8 31 Dec 14   9.52 0.02   6.5 8.6 14 Jan 15   9.36 0.02   6.2 9.7 16 Jan 15   9.38 0.02   6.3 9.3 24 Jan 15   9.54 0.02   6.4 7.8 15-Aug-15 13.64 0.02 10.6 4.7 22-Aug-15 13.72 0.01 10.6 3.6 19-Sep-15 14.35 0.02 11.2 0.5 02-Oct-15 14.57 0.01 11.3 2.4 23-Oct-15 14.91 0.01 11.9 1.1 04-Feb-16   16.25 0.05 13.2 0.2
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