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EntityQ904230· pop 35· linked from 810 articles

galaxy in the constellation Triangulum

Key facts

Constellation
Triangulum
Right ascension
01 38 18.679
Declination
+35 ° 21 ′ 53.47 ″
Heliocentric radial velocity
4,925 km/s
Distance
217.1 Mly (66.55 Mpc )
Type
Sa
Size
144,000 ly (44.16 kpc ) ( diameter; D 25 isophote )
Apparent size v
2′.04 × 0′.55

via Wikipedia infobox

~1 min read

Encyclopedic overview

NGC 634 is a spiral galaxy, lying at a distance of 217.1 megalight-years away from the Milky Way in the northern constellation of Triangulum. This object was discovered on 26 October 1876 by French astronomer Édouard Stephan. It is inclined by an angle of 82.4° to the line of sight from the Earth, and thus is being viewed nearly edge on.

Supernovae

Excerpted from Wikipedia’s “Q904230” article, available under the CC BY-SA 4.0 licence.