A globular cluster is a spherical collection of stars that orbit a galactic core, as a satellite. Globular clusters are very tightly bound by gravity, which gives them their spherical shapes, and relatively high stellar densities toward their centers.
Deep Sky Astrophotography without Light pollution filter – NGC 5139
“Can we do deep sky astrophotography in bright light pollution area ?” many people asked me this question , For deep sky objects imaging you would need patience and study . You may check...