M106 - Intermediate Spiral Galaxy
M106 is a Seyfert galaxy with an active nucleus, showing unusual emission lines that suggest accretion onto its central black hole.
Distance: 23.7 million light-years
Apparent Magnitude: 8.41
Apparent Size: 19' × 8'
Constellation: Canes Venatici
Morphology: SAB(s)bc (barred spiral)
Key Features:
- Seyfert II active galaxy
- Unusual "anomalous arms" in radio/X-ray
- Central black hole: 40 million solar masses
- Water masers used to measure distance
- Large angular size, good for moderate telescopes
Best Imaging Season: January - May
Optimal Integration: 10+ hours
