24  June  2017
 
M3 CLUSTER
                                                                                                               
    



By Jaspal Chadha
( https://flic.kr/p/T5CNVF )

 
M3 is one of the largest and brightest star clusters, and is made up of around 500,000 stars.
 It is located at a distance of about 33,900 light-years from Earth, the cluster spans about 220 light-years.
 It is estimated to be 8 billion years old, making M3 one of the oldest formations in our galaxy.
 To put that in perspective, this nebula was already half its current age when our own Sun was formed.
 Date taken 21/03/2017
 Location: London
 Telescope: Tak 130 (with reducer )
 Ioptron CEM60 mount
 QSI 690 CCD
 unguided 8 x 120s subs consisting of LRGB
 
     

 

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