David's Astronomy Pages (Solar System) Comets - 2015

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	Comet Images (2015)	This page summarises observations and images of comets in 2015
	22P/Kopff (Apr 2015)
	C/2011 J2 LINEAR (Nov 2014 - Jan 2015)
	C/2013 X1 (PANSTARRS) (Nov 2015)
	C/2014 A4 (SONEAR) (Nov 2015)
	C/2014 Q2 (Lovejoy) (Feb 2015)
	C/2015 F5 (SWAN-Xingming) (May 2015)

22P/Kopff - Apr 2015

22P/Kopff (passing through Virgo)

Annotated CCD Image (100% size, cropped) 3 x 60 sec exposure (average combine), 3x3 binning, C Filter 2015-04-09 22:41hUT (#583049-52) 12" LX200R  (at f/10.4) + ST-10XME

22P/Kopff - earlier images (2009)

Annotated CCD Image (cropped to central area) 3 x 20s sec exposure (average combine), 3x3 binning, C Filter 2009-09-19 22:34 h UT (#389210-12) 12" LX200R  (at f/5.7) + ST-10XME

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C/2011 J2 LINEAR - Nov 2014 - Jan 2015

C/2011 J2 LINEAR - 2015-01-04  (Passing through starfield in Pegasus ) Sun distance 4.82 AU

CCD Image (100% size, cropped) 5 x 45 sec exposure (average combine), 3x3 binning, C Filter 2015-01-04  20:50hUT (#573179-82) 12" LX200R  (at f/10.4) + ST-10XME

C/2011 J2 LINEAR - 2014-12-02 (Passing through starfield in Pegasus ) Sun distance 4.62 AU

CCD Image (100% size, cropped) 4 x 45 sec exposure (average combine), 3x3 binning, C Filter 2014-12-02 19:47hUT (#573179-82) 12" LX200R  (at f/10.4) + ST-10XME

C/2011 J2 LINEAR - 2014-11-30 (Passing through starfield in Pegasus ) Sun distance 4.61 AU

Annotated CCD Image (100% size, cropped) 3 x 45 sec exposure (average combine), 3x3 binning, C Filter 2014-11-30 20:22hUT (#572086-89) 12" LX200R  (at f/10.4) + ST-10XME

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C/2013 X1 (PANSTARRS) - Nov 2015

C/2013 X1 (PANSTARRS) - 2015-11-02 (passing through starfield in Perseus) Sun distance 2.68 AU

CCD Image (50% size) 60s exposure (simgle frame), 3x3 binning, C Filter 2015-11-02 23:17 h UT (#593074) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 X1 (PANSTARRS)  - 2015-11-02, detail Stacked image, with sub-frames aligned on comet Trailed stars show that the comet is moving against the background

CCD Image (cropped) 3 x 60s exposure (average combine/aligned on comet), 3x3 binning, C Filter 2015-11-02 23:19 h UT (#593074-77) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 X1 (PANSTARRS) - 2015-11-01 (passing through starfield in Perseus) Sun distance 2.69 AU

CCD Image (50% size) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2015-11-01 21:49 h UT (#592200-01) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 X1 (PANSTARRS) - 2015-11-01, detail Stacked image, with sub-frames aligned on comet Trailed stars show that the comet is moving against the background

CCD Image (100% size, logscale, cropped) 5 x 60s exposure (average combine/aligned on comet), 3x3 binning, C Filter 2015-11-01 21:51 h UT (#592200-04) 12" LX200R  (at f/10.4) + ST-10XME

C/2013 X1 (PANSTARRS)  - 2015-11-01 motion over 55 minutes 1) 2015-11-01 21:49 h UT (#592200-01) 2) 2015-11-01 22:44 h UT (#592239-40)

1)

2)

CCD Images (100% size, cropped) 2 x 60s exposure (average combine), 3x3 binning, C Filter 12" LX200R  (at f/10.4) + ST-10XME

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 C/2014 A4 (SONEAR) - Nov 2015

C/2014 A4 (Sonear) - 2015-11-02 (passing through starfield in Pisces) Sun distance 4.21 AU

CCD Image (cropped) 3 x 60s exposure (average combine), 3x3 binning, C Filter 2015-11-02 23:11 h UT (#593067-70) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 A4 (SONEAR) - 2015-11-01 (passing through starfield in Pisces) Sun distance 4.21 AU

CCD Image (50% size) 2 x 60s exposure (average combine), 3x3 binning, C Filter 2015-11-01 23:11 h UT (#592208-11) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 A4 (SONEAR) - 2015-11-01 motion over 57 minutes 1) 2015-11-01 22:00 h UT (#592208-11) 2) 2015-11-01 22:57 h UT (#592251-55)

1)

2)

CCD Images (100% size, cropped) 2 x 60s exposure (average combine), 3x3 binning, C Filter 12" LX200R  (at f/10.4) + ST-10XME

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C/2014 Q2 (Lovejoy) - Feb 2015

C/2014 Q2 (Lovejoy) - 2015-03-24 (Passing through starfield in Perseus) Sun distance 1.33 AU

CCD Image (50% size, cropped) 9 x 15 sec exposure (average combine), 3x3 binning, C Filter 2015-03-24 21:33hUT (#581123-31) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 Q2 (Lovejoy) - 2015-02-20 (Passing through starfield in Perseus) Sun distance 1.33 AU

CCD Image (Linear Scale, 70% size) 6 x 10 sec exposure (average combine), 3x3 binning, C Filter 2015-02-20 20:04hUT (#580020-26) 12" LX200R  (at f/10.4) + ST-10XME

C/2014 Q2 (Lovejoy) - Detail - 2015-02-20

CCD Image (Square root scale, 70% size) Image details as above

C/2014 Q2 (Lovejoy) - 2014-12-30 (Passing through starfield in Lepus) Sun distance 1.37 AU

CCD Image (Linear Scale, 50% size) 6 x 15 sec exposure (average combine), 3x3 binning, C Filter 2014-12-30 20:04hUT (#578114-19) 12" LX200R  (at f/10.4) + ST-10XME

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C/2015 F5 (SWAN-Xingming) - Apr 2015

C/2015 F5 (SWAN-Xingming) - attempted imaging (passing through Auriga) Forecast position of comet is indicated by white circle.  No indication of comet at either this location or elsewhere on image. Limiting magnitude of image +17.5 vs forcast magnitude of +10.5

CCD Image (cropped) 4 x 30s exposure (average combine), 3x3 binning, C Filter 2015-05-15 00:13 h UT (#589122-25) 12" LX200R  (at f/10.4) + ST-10XME

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