Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Benetnasch (ηUMa)  ·  The star Alkaid
Getting plate-solving status, please wait...
Catalina and Alkaid, 



    
        

            Tony Cook
Catalina and Alkaid
Powered byPixInsight

Catalina and Alkaid

Getting plate-solving status, please wait...
Catalina and Alkaid, 



    
        

            Tony Cook
Catalina and Alkaid
Powered byPixInsight

Catalina and Alkaid

Equipment

Imaging Telescopes Or Lenses
Televue TV-85
Imaging Cameras
canon 450D
Mounts
10 Micron 1000 HPS
Accessories
TeleVue TRF-2008 0.8x
Software
Mike Unsold Images Plus · Russle Croman GradientXTerminator · Noel Carbonni Astrotools · Photoshop CS 2

Acquisition details

Dates:
Jan. 15, 2016
Frames:
61x240" (4h 4') ISO800
Integration:
4h 4'
Darks:
36
Flats:
25
Flat darks:
25
Avg. Moon age:
5.80 days
Avg. Moon phase:
33.47%
Mean SQM:
19.60

Basic astrometry details

Astrometry.net job: 929698

RA center: 13h51m52s.3

DEC center: +49°1510

Pixel scale: 2.250 arcsec/pixel

Orientation: 178.553 degrees

Field radius: 1.556 degrees

Resolution: 4116x2802

Locations: Home, Bramhope, West Yorkshire, United Kingdom

Description

Comet C/2013 US10 (Catalina) passes Eta Ursae Majoris (Alkaid)

This was my first light image for my home observatory - 3 months after it was installed. The long delay was due to a succession of 6 strong Atlantic storms stretching from late October to late December (Abigail, Barney, Clodagh, Desmond, Eva and Frank).

Home is in outer suburbia and the skies are 3 to 4 times brighter than my remoter site.

Version B: Changed the Screen blend coefficient for the comet layer from 1.0 to 1.67 to better emphasise the ion and dust tails.

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

Comments

Revisions

  • Catalina and Alkaid, 



    
        

            Tony Cook
    Original
  • Final
    Catalina and Alkaid, 



    
        

            Tony Cook
    B

Sky plot

Sky plot

Histogram

Catalina and Alkaid, 



    
        

            Tony Cook

In these public groups

Comets Imaging
Cloudy Nights