Discovered by astronomer Charles Messier, who added it to his catalog on August 31, 1780, along with Messier 70.
It is one of the weakest globular clusters in Messier's catalogue, with low metallicity. It can be seen as a small mist in binoculars.
However, due to its southern location, it is a difficult object to be seen by observers in the Northern Hemisphere.
Best details:
https://www.astrobin.com/full/5g3hkj/0/
EQUIPMENTS:
ZWO ASI 6200MC PRO COLED
Espirit 150mm
45 x 100sec
Date: 08/06/2021
Location: Jales-SP-Brazil
Copyright: Fernando Oliveira de Menezes
E-mail: Barretosmed@hotmail.com