NGC 2403 - Spiral Galaxy
NGC 2403 is a nearby intermediate spiral galaxy in the M81 Group, similar to M33 but less well-known. It shows excellent detail in moderate telescopes.
Distance: 8 million light-years
Apparent Magnitude: 8.43
Apparent Size: 22' × 12'
Constellation: Camelopardalis
Morphology: SAB(s)cd (intermediate spiral)
Key Features:
- Member of M81 Group
- Large angular size (similar to M33)
- Multiple HII regions visible
- Two supernovae in 2004
- Excellent target for moderate telescopes
- Shows nice detail with modest integration
Best Imaging Season: November - March
Optimal Integration: 10+ hours