Photographing M45 (Pleiades cluster) with a William Optics RedCat 51

A basic introduction on using ASI Studios version of deep stack to load your images. The picture is M45 (Pleiades cluster). The camera I used is a zwo 553MC (colour) Pro. I followed Beginner Photoshop Astrophotography Editing Tutorial by AstroStace here is the link:    • Beginner Photoshop Astrophotography E...  

The cluster core radius is about 8 light-years and tidal radius is about 43 light-years. The cluster contains over 1,000 statistically confirmed members, a figure that excludes an unresolved likely further number of binary stars.[49] Its light is dominated by young, hot blue stars, up to 14 of which can be seen with the naked eye depending on local observing conditions and visual acuity of the observer. The arrangement of the brightest stars is somewhat similar to Ursa Major and Ursa Minor. The total mass contained in the cluster is estimated to be about 800 solar masses and is dominated by fainter and redder stars.[49] An estimate of the frequency of binary stars in the Pleiades is about 57%.
The cluster contains many brown dwarfs, which are objects with less than about 8% of the Sun's mass, not heavy enough for nuclear fusion reactions to start in their cores and become proper stars. They may constitute up to 25% of the total population of the cluster, although they contribute less than 2% of the total mass. Astronomers have made great efforts to find and analyse brown dwarfs in the Pleiades and other young clusters, because they are still relatively bright and observable, while brown dwarfs in older clusters have faded and are much more difficult to study.



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