M 52

About image 

M52 is an open cluster in Cassiopeia constellation, located about 30’ from the Bubble Nebula: indeed most of us astrophotographers prefers taking wide field images with both objects, but in these images inevitably the attention is all caught by the nebula. 

So I decided to take a close up on the cluster itself. It has a diameter of 13’ and it is a rich cluster being composed by many brilliant and young stars (the estimated age of this cluster is about 160 million years).

Technical data
Optic          GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8
Mount        10Micron GM2000 HPSII
Camera         Moravian G3-16200 with external filter wheel 7 positions
Filters         Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted RGB  
Guiding system    OAG Moravian M68 with guide camera Moravian G1-0301
Exposure details  R 10x300" bin2 -20C
          G 10x300" bin2 -20C
          B 10x300" bin2 -20C
Total integration  2,5h
Acquisition      Voyager, PHD2
Processing      Pixinsight 1.8, Photoshop CS5
SQM-L       21.4    
Location       Promiod (Aosta Valley, Italy), own remote observatory
Date           23 August 2020


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