SH 2-155 - Cave Nebula
The Cave Nebula is an emission nebula with a dark cave-like structure, part of the Cepheus molecular cloud complex.
Distance: 2,400 light-years
Apparent Size: 30' × 20'
Constellation: Cepheus
Object Type: Emission Nebula
Key Features:
- Cave-shaped dark region
- Bright rim structure
- Part of Cep OB3 association
- Active star formation
- Photogenic target
Best Imaging Season: July - November
Optimal Integration: 12+ hours
