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Contains:  The star 40Tau, The star νTau
Getting plate-solving status, please wait...
Comet Lovejoy 10.01.15, 





    
        

            Rich Bamford
Comet Lovejoy 10.01.15

Comet Lovejoy 10.01.15

Technical card

Resolution: 2676x1608

Dates:Jan. 10, 2015

Frames: 59x60" ISO800

Integration: 1.0 hours

Avg. Moon age: 19.55 days

Avg. Moon phase: 76.25%

Astrometry.net job: 512045

RA center: 3h 56' 31"

DEC center: +4° 40' 44"

Orientation: 164.449 degrees

Field radius: 3.390

Locations: Home, Grantham, United Kingdom

Description

About an hour of 60s subs, Nikon D7100, Nikkor 18-300 @200mm.
Lots of LP so had great difficulty pulling the comet out of the image.
Tried DSS to stack it first and ended up with a mess :(
PixInsight produced far better results.

Started by masking out all the bright stars in the star-aligned subs before comet stacking. This greatly reduced the smudges left by the stars. (Tried the min/max method of integration to remove the stars but because subs were wide field and close together it didn't work too well)
Once I'd managed to pull out the comet i then merged the stacked stars back over it.

Comments

Author

Myrialejean
Rich Bamford
License: None (All rights reserved)
430
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Revisions

  • Comet Lovejoy 10.01.15, 





    
        

            Rich Bamford
    Original
  • Final
    Comet Lovejoy 10.01.15, 





    
        

            Rich Bamford
    B

Sky plot

Sky plot

Histogram

Comet Lovejoy 10.01.15, 





    
        

            Rich Bamford