Nebulae
Messier 52 and NGC 7635 Bubble Nebula
Modified Canon 450D through a 300mm Vivitar OM lens at F5.6 (wide open). A Castell UHC Deepsky Filter was used.
A total of 22 x 5 min exposures at ISO 800.
The M52 open cluster is to the lower left, with NGC 7635 to the upper right.
Part of the bubble outline can be seen, along with hydrogen (H II) nebulosity.
Date: 26/09/2015
