Object of the Season (Autumn 2018)
Emission Nebula NGC 7635 in Cassiopeia
This is the famous Bubble Nebula, located half a degree southwest of the open cluster M52. This HII region was found by William Herschel on 3 November 1787. The nebula is visible with an 8 or 10-inch plus OIII filter. The nearby 7 magnitude star on the west hinders observation. The elongated shape appears with larger aperture (16-inch).
- NGC 7635
- Position (2000)
- 23 20 48.3 +61 12 06 (Cas)
- emission nebula
- 15' x 8' (4 ly)
- 9000 ly
- Other Designations
- IV 52, h 2235, GC 4947, LBN 549, Sh2-162
Results of the observations of NGC 7635 will be published in DSO 182.
Wolfgang Steinicke - Nebulae and Clusters Section Director