Caldwell 33 • NGC 6992 • Eastern Veil Nebula
Caldwell 33 is part of the Eastern Veil Nebula, a bright filamentary structure within the larger Cygnus Loop supernova remnant. The delicate strands of ionized gas trace the shock front of a massive stellar explosion that occurred thousands of years ago.
The photo is an Astap stack of three stacks.
1. Hα luminance HOS
2. Hα luminance OHS
3. OIII luminance OHS
Object Data
Caldwell:Caldwell 33
Object:NGC 6992
Type:Supernova remnant (Eastern Veil)
Constellation:Cygnus
Distance:~2,400 light-years
Observation Data
Location:Pollux Observatory, Zuidlaren
Date: 2021-08-31
Technical Data
Exposure time:S- 10x 200 sec
Hα- 10 x 200 sec
O- 10 x 200 sec
Total: 1.7 h
Hα- 10 x 200 sec
O- 10 x 200 sec
Total: 1.7 h
Telescope:Takahashi FSQ106 ED
Camera:ZWO ASI 1600mm Pro
Color palette: Hα luminance SHO
Filters:Astronomik 6 nm