Image Description and Details : LBN 576 (also known as Abell 85 and CTB 1) is a faint supernova remnant lying almost 10,000 light years away.

Very diffuse nebula and challenge target, which required many hours of exposure, around 26 hours to obtain this result. Hope you like it.


Setup:
Mount: Sky-Watcher EQ6-r
Telescope: TS APO 80/500
Capture camera: QHY294MM
Guide camera: ASI 120MM
Filters: Baader CMOS Ha 3.5nm; Baader CMOS OIII 4nm
Frames:
Ha: 115x400s | Gain 1750 | -10ºC
OIII: 120x400s | Gain 1750 | -10ºC
Total Exposure: ~26h

Acquisition: Sharpcap; APT
Edition: PixInsight Core; PS
Location: Sabugo - Portugal | Bortle 6/7
Oct/Nov 2021

Copyright: Henrique Silva