Jump to content

Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.


Messier 103.jpg

Sign in to follow this  

Messier 103 
(also known as M103, or NGC 581) is an open cluster where a few thousand stars formed in the constellation Cassiopeia. This open cluster was discovered in 1781 by Charles Messier's friend and collaborator Pierre Méchain.It is one of the most distant open clusters known, with distances of 8,000 to 9,500 light-years from the earth and ranging about 15 light-years apart. There are about 40 member stars within M103,two of which have magnitudes 10.5, and a 10.8 red giant, which is the brightest within the cluster. Observation of M103 is generally dominated by the appearance of Struve 131,though the star is not a member of the 172-star cluster.]M103 is about 25 million years old. (Wikipedia)

Rightascension 01h 33.2m
Declination +60° 42′
Distance10 thousand light-years 3 kpc
Apparent magnitude (V)7.4
Apparent dimensions (V)6.0'

DATE: Friday   DATE: 30/9/16   TIME: 00:10
SCOPE: Dob 10px Sky- Watcher F.L.1200/f4.7
EYEPIECE: Excplore Scientific 20mm F.O.V.68°

Sign in to follow this  

From the album:


  • 63 images
  • 9 image comments

Photo Information for Messier 103.jpg

Recommended Comments

There are no comments to display.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.