Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  HD184932  ·  HD185030  ·  HD185131  ·  HD185132  ·  HD185163  ·  HD185302  ·  HD185386  ·  HD185449  ·  HD185614  ·  HD185633  ·  HD185727  ·  HD185744  ·  HD185791  ·  M 55  ·  NGC 6809
Getting plate-solving status, please wait...
M55, Kirby Collins
Powered byPixInsight

M55

Getting plate-solving status, please wait...
M55, Kirby Collins
Powered byPixInsight

M55

Equipment

Loading...

Acquisition details

Loading...

Description

Messier described this cluster in Sagittarius as "A nebula which is a whitish spot, of about 6' extension, its light is even and does not appear to contain any star."  In a modern amateur scope it is quite large at almst 20 arcminutes in diameter, and appears unusually open for a globular, with its brightest stars easily resolvable.

Comments

Sky plot

Sky plot

Histogram

M55, Kirby Collins