Hemisphere:  Northern  ·  Constellation: Pegasus (Peg)  ·  Contains:  M 15  ·  NGC 7078
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M15, 



    
        

            Roberto Marinoni
M15
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M15

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M15, 



    
        

            Roberto Marinoni
M15
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M15

Technical card

Imaging telescopes or lenses: GSO RC12 truss

Imaging cameras: Moravian G3-16200

Mounts: 10Micron GM2000 HPSII

Guiding telescopes or lenses: GSO RC12 truss

Guiding cameras: Moravian G1-0301

Software: PHD guiding  ·  Voyager  ·  Pixinsight 1.8  ·  Adobe Photoshop CS 5

Filters: Astrodon Tru-Balance Gen2 E-Serie 50mm L  ·  Astrodon Tru-Balance Gen2 E-Serie 50mm R  ·  Astrodon Tru-Balance Gen2 E-Serie 50mm G  ·  Astrodon Tru-Balance Gen2 E-Serie 50mm B

Accessory: Moravian OAG-3-M68


Dates:Sept. 4, 2019Sept. 28, 2019Sept. 30, 2019Dec. 7, 2019

Frames:
Astrodon Tru-Balance Gen2 E-Serie 50mm B: 10x300" (50') -20C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm B: 15x15" (3' 45") -30C
Astrodon Tru-Balance Gen2 E-Serie 50mm G: 12x300" (1h) -20C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm G: 15x15" (3' 45") -30C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm L: 34x300" (2h 50') -20C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm L: 15x15" (3' 45") -30C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm R: 11x300" (55') -20C bin 2x2
Astrodon Tru-Balance Gen2 E-Serie 50mm R: 15x15" (3' 45") -30C bin 2x2

Integration: 5h 50'

Darks: ~15

Flats: ~15

Flat darks: ~15

Avg. Moon age: 11.80 days

Avg. Moon phase: 28.95%

Mean SQM: 21.43


Basic astrometry details

Astrometry.net job: 3121189

RA center: 21h 29' 59"

DEC center: +12° 10' 4"

Pixel scale: 1.017 arcsec/pixel

Orientation: 89.857 degrees

Field radius: 0.381 degrees


Resolution: 2084x1711

Locations: Promiod, Aosta, Val d'Aosta, Italy

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Description

M15 is a globular cluster in the constellation of Pegasus; it has an apparent diameter of

18’ and magnitude 6.2.

The cluster contains many variable stars, as many as 110, which allowed us to estimate a distance of 33,600 light years.

This cluster has two peculiar characteristics: it is one of the densest in the Milky Way and contains a planetary nebula (Pease 1, discovered in 1927 on photos taken by the Mount Wilson Observatory)

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  • M15, 



    
        

            Roberto Marinoni
    Original
  • Final
    M15, 



    
        

            Roberto Marinoni
    B

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M15, 



    
        

            Roberto Marinoni

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