29-09-2010
THE BUBBLE NEBULA

CELESTRON C6
MEADE DSIPRO2 MONO
11 X 60 SEC RED CHANNEL GUIDED
20 X 60 SEC BLUE CHANNEL GUIDED
12 X 60 SEC GREEN CHANNEL GUIDED
TOTAL 42 MINUTES

NGC 7635, also called the Bubble Nebula and Sharpless 162, is a H II region emission nebula in the constellation Cassiopeia. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7[2] magnitude young central star, The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow. It was discovered in 1787 by Friedrich Wilhelm Herschel.