M 37

About image

M37 is the largest (24 ' in diameter) of the Auriga clusters and is located in a somewhat more detached area compared to the rich star fields in the center of the constellation.
It is formed by at least 170 stars up to the thirteenth magnitude, while up to the fifteenth magnitude these become over half a thousand.
The distance is estimated on about 4000 light years while its age is over 300 million years; it is therefore a cluster of fairly advanced age. 

Technical data
Optics         Tecnosky Apo Refractor LT 130 - 910mm f/7
Mount        10Micron GM2000 HPSII
Camera         Moravian G3-16200 with external filter wheel 7 positions
Filters       Baader RGB 50.8 unmounted
Guiding system     OAG Moravian M68 with guide camera Moravian G1-0301
Exposure details   R 8x300" bin1 -20C
              G 7x300" bin1 -20C
                                     B 8x300" bin1 -20C
Total integration   1.9h
Acquisition      Voyager, PHD2
Processing      Pixinsight 1.8, Photoshop CS5
SQM-L       21.10    
Location       Promiod (Aosta Valley, Italy), own remote observatory
Date           10 February 2018

© Roberto Marinoni 2019 - All rights reserved