Hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)
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Comet C/2013 US10 (Catalina), 


            Tony Cook
Comet C/2013 US10 (Catalina)
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Comet C/2013 US10 (Catalina)

Technical card

Imaging telescopes or lenses: Televue TV-85

Imaging cameras: canon 450D

Mounts: 10 Micron 1000 HPS

Guiding cameras: canon 450D

Focal reducers: TeleVue TRF-2008 0.8x

Software: Russle Croman GradientXTerminator  ·  Noel Carbonni Astrotools  ·  Mike Unsold Images Plus  ·  Photoshop CS 2

Dates:Jan. 8, 2016

Frames: 25x300" (2h 5') ISO800

Integration: 2h 5'

Darks: 25

Flats: 25

Flat darks: 25

Avg. Moon age: 27.93 days

Avg. Moon phase: 2.88%

Mean SQM: 20.76

Temperature: 1.00

Basic astrometry details

Astrometry.net job: 907704

RA center: 14h06m46s.3

DEC center: +32°1731

Pixel scale: 2.248 arcsec/pixel

Orientation: 91.399 degrees

Field radius: 1.610 degrees

Resolution: 620x413

Locations: Dark Sky Site, Kirby Malzeard, North Yorkshire, United Kingdom


I imaged the comet in a short clear sky window on the morning of the 8th January 2016. Over the previous 3 months any clear sky has been rare in North Yorkshire so I count this as a lucky opportunity even though my dark sky site was officially closed the previous day. It required sneaking in, setting up for 01:00am, imaging until the clouds came back at 03:05, tearing down and finally sneaking out at 05:00 am before dawn.

My dark sky site opens again 1st March (its a holiday park with chalets and trailers).

Other images of C/2013 US10

29th December 2015

1st January 2016

9th January 2016

15th January 2016

31st January 2016

28th February 2016

30th March 2016

3D Stereo (relaxed eyes) 15th January 2016

3D Stereo (crossed eyes) 15th January 2016

Evolution sequence


Sky plot

Sky plot


Comet C/2013 US10 (Catalina), 


            Tony Cook

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