28 Jun 2016

The William Herschel Telescope and the Milky Way towards the Galactic Centre. Visible from left to right: open cluster Messier 23, open cluster Messier 21, the Triffid Nebula or Messier 20, the Lagoon Nebula or Messier 8, and the Butterfly Cluster or Messier 6. Try to find them yourself using this finding chart.