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Hemisphere:  Southern  ·  Contains:  M 10, NGC 6254
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M10     Globular  Cluster, 



    
        

            AlBroxton
M10     Globular  Cluster
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M10 Globular Cluster

Technical card

Imaging telescopes or lenses: Celestron C11 Celestron

Imaging cameras: 60Da Canon

Mounts: CGEM Celestron

Focal reducers: 6.3 reducer Celestron

Software: Deep Sky Stacker  ·  photoshop  ·  Noel's Tools  ·  5.00 Images Plus


Dates:Aug. 2, 2013

Frames: 18x60"

Integration: 0.3 hours

Avg. Moon age: 25.55 days

Avg. Moon phase: 16.88%


Basic astrometry details

Astrometry.net job: 3445319

RA center: 16h 57' 2"

DEC center: -4° 5' 42"

Pixel scale: 2.103 arcsec/pixel

Orientation: 43.862 degrees

Field radius: 0.312 degrees


Resolution: 900x573

Data source: Backyard

Description

Messier 10 or M10 (also designated NGC 6254) is a globular cluster in the constellation of Ophiuchus . The object was discovered by Charles Messier on May 29, 1764, who cataloged it as number 10 in his list. He described it as a "nebula without stars", but later study revealed it as a globular cluster of thousands of stars. M10 has an apparent diameter of some 20 arc minutes, about two-thirds of the apparent diameter of the Moon. Viewed through medium-sized telescopes it appears about half that size (8' to 9'), as its bright core is only 35 light-years across. M10 has a spatial diameter of 83 light-years and is estimated to be 14,300 light-years away from Earth. Four variable stars have been discovered in this cluster. This cluster completes an orbit through the Milky Way galaxy about every 140 million years, during which it crosses the plane of the galactic disk every 53 million years. This rosette orbit has an eccentricity of 0.21.

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Author

AlBroxton
AlBroxton
License: None (All rights reserved)
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  • M10     Globular  Cluster, 



    
        

            AlBroxton
    Original
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    M10     Globular  Cluster, 



    
        

            AlBroxton
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Histogram

M10     Globular  Cluster, 



    
        

            AlBroxton