Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  IC 4725  ·  M 25  ·  M25  ·  PK013-04.2
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M25, 



    
        

            Kurt Zeppetello
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Technical card

Imaging telescopes or lenses: Orion ED80 80mm f/7.5 Apochromatic Refractor Telescope

Imaging cameras: Canon EOS Rebel T3i

Mounts: Orion Sirius EQ-G (HEQ5)

Guiding telescopes or lenses: Agena 50mm Guide Scope with Helical Focuser

Guiding cameras: QHY-5-L-II-M Planatary & Autoguider

Software: Adobe photoshop  ·  Lightroom  ·  BackyardEOS  ·  PHD Guiding


Dates:Sept. 3, 2016

Frames:
20x80" ISO800
1x90" ISO800

Integration: 0.5 hours

Darks: ~5

Bias: ~4

Avg. Moon age: 2.00 days

Avg. Moon phase: 4.46%

Temperature: 30.00


Astrometry.net job: 1227705

RA center: 18h 31' 51"

DEC center: -19° 8' 0"

Pixel scale: 1.476 arcsec/pixel

Orientation: 7.238 degrees

Field radius: 0.573 degrees


Resolution: 2304x1580

Locations: Happy Frog Observatory, Monroe, Connecticut, United States

Description

M25 is an open cluster in the constellation Sagittarius and located some 2,000 light-years away (source: wikipedia). Of course I would have liked to have longer exposure but M25 went behind a tree during the session.

The object represents 41 on the Messier Objects with an ED80 project that I am working on.

Comments

Revisions

  • M25, 



    
        

            Kurt Zeppetello
    Original
  • Final
    M25, 



    
        

            Kurt Zeppetello
    B

Sky plot

Sky plot

Histogram

M25, 



    
        

            Kurt Zeppetello