Object of the Season
The Webb Deep-Sky Society requested observations for the following deep-sky objects. Findings are published in the Deep Sky Observer (DSO).
Observations should be sent to Wolfgang Steinicke , Gottenheimerstr. 18, D-79224 Umkirch, Germany.
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
Previous Objects of the Season
Object of the Season 2018
Object of the Season 2017
Object of the Season 2016
Object of the Season 2015
Object of the Season 2014