M74 (NGC 628)
M74. Image courtesy Isaac Newton Group of Telescopes.
M74 (NGC 628) is a conspicuous spiral galaxy in the constellation Pisces. M74 is a classic "grand-design" Sc galaxy (see galaxy classification) seen almost exactly face-on. Its spiral arms, some 1,000 light-years broad, are traced with clusters of young blue stars and pinkish colored diffuse gaseous nebulae (H II regions). These arms reach out to cover a region more than 10 minutes of arc in diameter, corresponding to roughly 95,000 light years, or about the same size as our Milky Way Galaxy.
|angular size||10.5' × 9.5'|
|distance||32 million light-years|
|recession velocity||793 km/s|
|position||R.A. 01h 37m, Dec. +15° 47'|