IC 1795 Fish Head
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

  1. Single-channel Ha
  2. Starnet star removal
  3. 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