That is a very nice image Ryking. Reading around the subject i found this presentation by Robin Glover enlightening.
https://www.youtube.com/watch?v=3RH93UvP358
British Astronomical Association
Supporting amateur astronomers since 1890
Supporting amateur astronomers since 1890
That is a very nice image Ryking. Reading around the subject i found this presentation by Robin Glover enlightening.
https://www.youtube.com/watch?v=3RH93UvP358