An open star cluster in Sagittarius. Object Details: Messier 23, NGC 6494 Visual magnitude: +5.5 Apparent diameter: 29 arc-min. Actual … More
Tag: Featured
Albireo
Albireo – a colourful variable double star system in Cygnus. It’s naked eye appearance is of a magnitude 3.0 single star but … More
Messier Objects 20 and 21
The Trifid Nebula, M20 and open cluster M21. An attempt to improve on my first image, in black and white, … More
