David's Astronomy Pages (Solar System)
Comets - 2016

Comet Images (2016) This page summarises observations and images of comets in 2016
Bullet  C/2013 US10 (Catalina) (Jan to Feb 2016)
Bullet 81/P Wild (Feb 2016)
Bullet C/2014 W2 (PANSTARRS)  (Feb 2016)
Bullet 9P/Tempel (Feb 2016)

C/2013 US10 (Catalina) - Jan to Mar 2016

C/2013 US10 (Catalina)
(passing through starfield in Ursa Major)
Sun distance 1.40 AU
Image
CCD Image Montage (50% size)
30s exposure (3 frames), 3x3 binning, C Filter
2016-01-17 18:31 to 20:25h UT (#594019, 594052,  594178)
12" LX200R  (at f/10.4) + ST-10XME
 
C/2013 US10 (Catalina)  - detail
Image
CCD Image (50% size, linear scale)
30s exposure (single frame), 3x3 binning, C Filter
2016-01-17 20:25h UT (#594178)
12" LX200R  (at f/10.4) + ST-10XME
 
Image
CCD Image (50% scale, linear scale)
5 x 30s exposure (average combine/aligned on comet), 3x3 binning, C Filter
22016-01-17  20:23 - 20:25h UT (#594174-78)
12" LX200R  (at f/10.4) + ST-10XME
 
Image
CCD Image (50% scale, log scale)
Image details as above
 
Image
False Colour CCD Image (50% scale, log scale)
False Colour - Inverse Spectrum
Image details as above
 
C/2013 US10 (Catalina)
(passing through starfield in Camelopardalis)
Sun distance 1.83 AU
Image
CCD Image Montage (Linear Scale, 50% size)
5 x 15s exposure (average combine), 3x3 binning, C Filter
2016-02-19 00:46h UT (#597114-19)
12" LX200R  (at f/10.4) + ST-10XME
 
C/2013 US10 (Catalina)  - detail
Image
False Colour CCD Image (Log Scale, 50% size)
Inverse Spectrum
Image details as above
 
Image
CCD Image (Square Root Scale, 50% scale)
Image details as above
 
C/2013 US10 (Catalina)  - Attempted Colour Image
Image
Colour CCD Image  (Linear Scale, 50% size)
Blue : 6 x 30s, 3x3 binning, B Filter
Green : 3 x 20s, 3x3 binning, V Filter
Red : 3 x 20s, 3x3 binning, R Filter
Frames aligned on comet,
2016-02-19 01:12h UT (#597166-77)
12" LX200R  (at f/10.4) + ST-10XME
 
C/2013 US10 (Catalina)  - Frames showing Motion over 21 minute period
2016-02-19 00:44 to 01:05h UT
Animation
CCD Image Sequence (Linear Scale, 50% size)
Frames 15s exposures, aligned on comet,
3x3 binning, C Filter
2016-02-19 00:44 to 01:05h UT (#597114-63)
12" LX200R  (at f/10.4) + ST-10XME
 
Image
CCD Image (Linear Scale, 50% size)
48 x 15s exposure (average combine, aligned on comet),
3x3 binning, C Filter
2016-02-19 00:55h UT (#597114-63)
12" LX200R  (at f/10.4) + ST-10XME
 
Image
False Colour CCD Image (Log Scale, 50% size)
Inverse Spectrum
Image details as above
 
C/2013 US10 (Catalina)  - Rotational Gradient Processing
Analysis of rotational gradient processed images show no
evidence of any jets emanating from the comet at time of image
(processing using IRIS [http://www.astrosurf.com/buil/us/iris/iris.htm]
Image
Rotational Gradient Processed CCD Image 
(10 deg rotation, Linear Scale, 67% size)
48 x 15s exposure (average combine, aligned on comet),
3x3 binning, C Filter
2016-02-19 00:55h UT (#597114-63)
12" LX200R  (at f/10.4) + ST-10XME
 
C/2013 US10 (Catalina)  - detail
Image
Rotational Gradient Processed CCD Image 
(15 deg rotation, Linear Scale, 77% size)
Image details as above
False Colour CCD Image (50% scale, log scale)
False Colour - Inverse Spectrum
Image details as above

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81/P Wild - Feb 2016

81/P Wild
(passing through starfield in Taurus)
Sun distance 2.19 AU
Image
Annotated CCD Image (50% size)
5 x 30s exposure (average combine), 3x3 binning, C Filter
2016-02-11 20:11h UT (#596077-81)
12" LX200R  (at f/10.4) + ST-10XME

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C/2014 W2 (PANSTARRS) - Comet

C/2014 W2 (PANSTARRS)
(passing through Cepheus, near boundary with Draco)
Sun Distance 2.68 AU
Image
CCD Image (50% size)
3 x 45 sec exposure (average combine), 3x3 binning, C Filter
2016-02-19 03:26hUT (#597304-07)
12" LX200R  (at f/10.4) + ST-10XME
 
C/2014 W2 (PANSTARRS)  - wider view
(comet is marked by white cross-lines)
Image
CCD Image (100% size, cropped)
Image details as above
 
C/2014 W2 (PANSTARRS) - Showing motion over 53 minute period
(motion: 10 arc secs/hour)
Animation
CCD Image Animation (100% scale, cropped)
2 frames, each 3 x 45 sec exposure (average combine), 3x3 binning, C Filter
Frame 1: 2015-04-09 03:26hUT (#597304-07)
Frame 2: 2015-04-09 04:19hUT (#597369-72)
12" LX200R  (at f/10.4) + ST-10XME

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9P/Tempel - Feb 2016

9P/Tempel  
(passing through starfield in Coma Berenices)
Sun Distance 2.17 AU
Comet is marked by white cross-lines
Measured magnitude +16.3  (vs. forecast mag +14.4)
Image
CCD Image (50% size)
5 x 45 sec exposure (average combine), 3x3 binning, C Filter
2016-02-19 04:10hUT (#597359-65)
12" LX200R  (at f/10.4) + ST-10XME
 
9P/Tempel  - detail
Image
CCD Image (100% size, cropped)
Image details as above

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