Linked from

The 3 pages that link to Messier 77, each with the reason it gives.

• Seyfert galaxyBroader topic: Its prominent active nucleus makes it a canonical Seyfert 2 example.

• Pierre MéchainBroader topic: Méchain discovered this galaxy in 1780, and Messier added it to his catalog.

• NGC 4151Compared with: Its obscured type 2 nucleus provides a useful comparison with NGC 4151’s partly visible broad-line region.