NGC 7635 or Bubble Nebula, Sharpless 162 is a emission nebula in the constellation Cassiopeia. The "bubble" is created by the stellar wind from a massive hot magnitude young central star SAO 20575. The distance of the Earth is 7100 light year and has a diameter of 6 light-years. |
Location / Date |
Μauna Keratea Obs July 2011 |
Telescope |
GSO RC 10" f8 (Ha) & WO ED70 f6,5 (SiiOiii) |
Field Flattener |
Astro -Tech 2” για το WO ED70 |
Mount |
Sky Watcher EQ6 Pro |
Camera |
QHY9 Temp -25c |
Guiding | TS OAG, Finder 9x50 qhy5 |
Filters / Exposures |
Ha : 30x600 bin 2x, Oiii : 18x900 bin 3x,, Sii : 14x900 bin 3x |
Total Exposure Time |
~ 13 Hours |
Software |
Nebulosity 2, Deep Sky Stacker, Μaxim DL, PixInsight, Photoshop CS5 |