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Contains:  M 3, NGC 5272
Getting plate-solving status, please wait...
Messier 3 from 3/26/2015, 


            Tom Masterson
Messier 3 from 3/26/2015

Messier 3 from 3/26/2015

Technical card

Resolution: 7993x5466

Dates:March 26, 2015

Frames: 19x240"

Integration: 1.3 hours

Avg. Moon age: 6.59 days

Avg. Moon phase: 41.60% job: 585450

RA center: 205.548 degrees

DEC center: 28.375 degrees

Pixel scale: 0.259 arcsec/pixel

Orientation: 99.651 degrees

Field radius: 0.348 degrees


Messier 3 or M3 for short is a large and very bright Globular Cluster located in the Canes Venatici constellation. It was discovered by Charles Messier on May 3, 1764, it is thought to be about 8 billion years old, and contains around 500,000 stars.

Technical Info:

19x Lights 240" at 640ISO
20x Darks
20x Bias
20x Flats
20x Dark Flats

Camera: Canon 6D
Scope: Celestron Edge HD 8
Mount: Advanced VX
Guide Scope: Orion Mag Mini With SSAG

Capture Software: Backyard EOS
Guide Software: PHD2
Stacking Software: Deep Sky Stacker
Final Processing: PSCC

Location: Los Angeles, CA



Tom Masterson
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Messier 3 from 3/26/2015, 


            Tom Masterson

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