bigmanastroman
NGC7635
NGC7635's bubble, around 10ly diameter, is a star remnant illuminated gas cloud c 11,000ly distant.
NGC7654 (M52) lower right is an open cluster of undetermined distance*
NGC7538 lower left is bright nebula
Up is 5˚ E of N
All processing with PixInsight
77 x 180Sec + 30 x 300 Sec
, over multiple nights.
BIAS and Optimised DARK files used for calibration**.
ASI294MC, Esprit ED80, AVX mount.
*Current estimates are 3.5-5.0ly due intervening gas clouds
**There is an unresolved issue with FLATS for the relevant nights
NGC7635
NGC7635's bubble, around 10ly diameter, is a star remnant illuminated gas cloud c 11,000ly distant.
NGC7654 (M52) lower right is an open cluster of undetermined distance*
NGC7538 lower left is bright nebula
Up is 5˚ E of N
All processing with PixInsight
77 x 180Sec + 30 x 300 Sec
, over multiple nights.
BIAS and Optimised DARK files used for calibration**.
ASI294MC, Esprit ED80, AVX mount.
*Current estimates are 3.5-5.0ly due intervening gas clouds
**There is an unresolved issue with FLATS for the relevant nights