SH 2-157 - Lobster Claw Nebula
SH 2-157 is an emission nebula with a claw-like shape, part of the rich nebula regions in Cassiopeia.
Distance: 11,000 light-years
Apparent Size: 40' × 20'
Constellation: Cassiopeia
Object Type: Emission Nebula
Key Features:
- Claw-like structure
- Part of Cassiopeia complex
- Faint emission
- Associated star cluster
- Requires narrowband
Best Imaging Season: September - January
Optimal Integration: 15+ hours
