Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  The star 40Tau  ·  The star νTau
Comet Lovejoy 10.01.15, 



    
        

            Rich Bamford
Comet Lovejoy 10.01.15
Powered byPixInsight

Comet Lovejoy 10.01.15

Comet Lovejoy 10.01.15, 



    
        

            Rich Bamford
Comet Lovejoy 10.01.15
Powered byPixInsight

Comet Lovejoy 10.01.15

Technical card

Imaging telescopes or lenses: Nikon Nikkor AF-S 18-300 DX VR ED

Mounts: Star Adventurer

Software: PixInsight


Dates:Jan. 10, 2015

Frames: 59x60" (59') ISO800

Integration: 59'

Avg. Moon age: 19.55 days

Avg. Moon phase: 76.25%


Basic astrometry details

Astrometry.net job: 512045

RA center: 03h56m31s

DEC center: +04°4044

Orientation: 164.449 degrees

Field radius: 3.390 degrees


Resolution: 2676x1608

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

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