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Contains:  M 65, M 66, NGC 3623, NGC 3627, NGC 3628
Getting plate-solving status, please wait...
Leo Triplet (LRGB), 


            Joel Shepherd
Leo Triplet (LRGB)
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Leo Triplet (LRGB)

Technical card

Dates:March 16, 2016March 17, 2016

Baader Planetarium B 1.25": 12x300" -20C bin 2x2
Baader Planetarium G 1.25": 12x300" -20C bin 2x2
Baader Planetarium L 1.25": 16x300" -20C bin 1x1
Baader Planetarium R 1.25": 12x300" -20C bin 2x2

Integration: 4.3 hours

Avg. Moon age: 8.68 days

Avg. Moon phase: 63.52%

Bortle Dark-Sky Scale: 6.00

Basic astrometry details job: 2115510

RA center: 11h 19' 50"

DEC center: +13° 16' 19"

Pixel scale: 2.197 arcsec/pixel

Orientation: 87.974 degrees

Field radius: 0.606 degrees

Resolution: 1600x1174

Locations: Home, Seattle, WA, United States


The first thing I've been able to produce in 3 months! :-) Working out the many kinks with a new 'scope (which I'm really happy with), a balky electronic filter wheel which has since been replaced with a straightforward manual, the added complexity of LRGB processing and our lovely winter weather (solidly in the top 3 wettest years in recorded history). Always wish there was less noise, but I really like the warmth and depth that the color gives.



Joel Shepherd
License: Attribution Creative Commons


  • Leo Triplet (LRGB), 


            Joel Shepherd
  • Final
    Leo Triplet (LRGB), 


            Joel Shepherd


Description: Fully reprocessed ... not evident in the smaller image, but less noisy, better color and a little more detail.

Sky plot

Sky plot


Leo Triplet (LRGB), 


            Joel Shepherd