This week's astrophoto is of the Lagoon Nebula (aka M8 and NGC 6523). The photo was taken by Milton Humason the night of May 15, 1950 with the Hale Telescope at prime focus.
Compare this with a color photo of the Lagoon taken about a decade later.
Palomar Skies a blog with news and information about the Palomar Observatory. Postings here will cover current research, history and public outreach events taking place at the observatory.