Nicknamed the butterfly cluster for its resemblance to a butterfly, it is located in the constellation of the scorpion, approximately 1,600 light-years away.
Messier 6 is best seen in binoculars, it is about the size of a full moon. The cluster contains over 300 stars, with binoculars it reveals only a few dozen and a small telescope will show little more.
Its first reports are a mystery, it is believed that its first record was by the Greek astronomer Claudius Ptolemy while observing neighboring Messier 7 (Ptolemy's cluster) in the 2nd century CE, which is just five degrees southeast of M6. In describing the nearby cluster M7, Ptolemy noted 'Girus ille nebulosis' meaning '2 small clouds'.
Best details:
https://www.astrobin.com/full/021sau/0/
EQUIPMENT:
ZWO ASI 6200MC PRO COLED
Espirit 150mm
95 x 100s
Date: . 07/01/2021
Location: Jales-SP-Brazil
Copyright: Fernando Oliveira de Menezes
Email: Barretosmed@hotmail.com