IC 1795 · FISH HEAD NOV 2025
§ DEEP-SKY · TARGET
IC 1795
Fish Head
- TYPE
- Emission nebula
- CONSTELLATION
- Cassiopeia
- DISTANCE
- 6,000 ly
- MAGNITUDE
- +11.4
- APPARENT SIZE
- 27' × 13'
ACQUISITION
DATE
Nov 2025
LOCATION
Anza-Borrego, CA · Bortle 2
INTEGRATION
7h 00m
PALETTE
Ha
SUBS
420 × 60s
SEEING
2.5"
FILTERS
Ha 3nm
A detached bright region of the larger Heart Nebula (IC 1805) complex. At the scope's focal length it frames well on its own.
§ 01 · THE NIGHT
How this one came together
Warmup target on a cold November night, intended as a test of a new reducer. The reducer worked. The Ha signal at this focal length was stronger than I expected; I wish I'd kept going and done an OIII run for a bicolor.
§ 02 · PROCESSING
Workflow
- Single-channel Ha
- Starnet star removal
- Curves + local contrast no sharpening
§ 03 · GEAR
Equipment
- SCOPE
- Printed 200/800 Newt
- CAMERA
- ASI2600MM Pro
- MOUNT
- EQ6-R Pro
- FILTERS
- Antlia Ha 3nm
- GUIDING
- OAG