Stirling Astronomical Society Gallery

Widefield view of the area east of Caph (γ Cassiopeiae). This region includes a number of interesting objects, including the Lobster Claw (SH 2-157, bottom) and the Bubble Nebula (NGC 7635, left of centre). The Cave nebula (SH 2-155) is top right and open cluster M52 can be seen above and to the left of the bubble nebula. This image uses the Hubble Palette, which displays Hydrogen-α emissions in green, Oxygen (OIII) in blue, and Sulphur (SII) in red.