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Contains:  M 13, Great Cluster in Hercules, NGC 6205
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M13, 





    
        

            Joshua Judkins
M13

M13

Technical card

Resolution: 3856x2781

Dates:July 20, 2018

Frames:
ZWO B 1.25": 10x5" (gain: 195.00) -20C bin 1x1
ZWO G 1.25": 13x5" (gain: 195.00) -20C bin 1x1
ZWO Lum 1.25": 8x5" (gain: 195.00) -20C bin 1x1
ZWO R 1.25": 14x5" (gain: 195.00) -20C bin 1x1

Integration: 0.1 hours

Darks: ~20

Flats: ~20

Avg. Moon age: 8.05 days

Avg. Moon phase: 57.04%

Bortle Dark-Sky Scale: 7.00

Astrometry.net job: 2163350

RA center: 250.423 degrees

DEC center: 36.458 degrees

Pixel scale: 0.328 arcsec/pixel

Orientation: 0.462 degrees

Field radius: 0.216 degrees

Data source: Backyard

Description

Messier 13, or the Great Globular Cluster in Hercules. My previous best image prior to my new set up was just a tiny fuzzy blob with very little resolution. Suffice it to say, I'm incredibly happy to have taken this image!

If you live in a dark location, you can actually see this object with your naked eye as a fuzzy patch near the right shoulder of the constellation Hercules. The cluster contains several hundred thousand stars in a densely packed region about 22,000 light years from Earth. From edge to edge this cluster is 145 light years in a diameter and is actually in orbit around the super massive black hole at the center of our own galaxy, the Milky Way.

Acquisition details: Meade LX600 12" telescope with wedge, ZWO ASI 1600MM-Cool camera. Luminance channel 8x5s, Red Channel 14x5s, Green Channel 13x5s, and Blue channel 10x5s for a total integrated exposure time of 3.75 minutes. Stacked in DSS and Nebulosity4, with some final processing and compositing in Photoshop CS6.

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chembio
Joshua Judkins
License: None (All rights reserved)
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M13, 





    
        

            Joshua Judkins