Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  M 12, NGC 6218
Getting plate-solving status, please wait...
M12 Globular Cluster (LRGB) - 15 May 2019, 





    
        

            Geof Lewis
M12 Globular Cluster (LRGB) - 15 May 2019

M12 Globular Cluster (LRGB) - 15 May 2019

Technical card

Resolution: 1503x1067

Dates:May 15, 2019

Frames:
Astronomik B 1.25" Type IIc: 10x120" -10C bin 2x2
Astronomik G 1.25" Type IIc: 10x120" -10C bin 2x2
Astronomik L 1.25" Type IIc: 20x120" -10C bin 2x2
Astronomik R 1.25" Type IIc: 10x120" -10C bin 2x2

Integration: 1.7 hours

Darks: ~20

Flats: ~20

Flat darks: ~20

Avg. Moon age: 11.14 days

Avg. Moon phase: 85.86%

Astrometry.net job: 2698451

RA center: 251.818 degrees

DEC center: -1.944 degrees

Pixel scale: 0.857 arcsec/pixel

Orientation: 358.166 degrees

Field radius: 0.219 degrees

Data source: Backyard

Description

Another in a series of globular clusters captured over a few nights of good seeing, during astronomical twilight, with a waxing 1st qtr Moon riding high.
The image has been cropped somewhat along the top and left, as I failed to accurately center the target in SGP before running the sequence.

Comments

Author

geoflewis
Geof Lewis
License: None (All rights reserved)
1361
Like

Revisions

  • M12 Globular Cluster (LRGB) - 15 May 2019, 





    
        

            Geof Lewis
    Original
  • Final
    M12 Globular Cluster (LRGB) - 15 May 2019, 





    
        

            Geof Lewis
    B

B

Levels adjustment to slightly brighten the core

Sky plot

Sky plot

Histogram

M12 Globular Cluster (LRGB) - 15 May 2019, 





    
        

            Geof Lewis