Whirlpool Galaxy (M 51)

Whirlpool Galaxy (M 51) is a galaxy in the constellation Canes Venatici, magnitude 8.4, 14′ × 12′ across.

The classic face-on spiral, interacting with its smaller companion NGC 5195. It was the first galaxy whose spiral structure was recognized (Lord Rosse, 1845), and its arms can be glimpsed in an 8-inch telescope under dark skies.

When and where to see it

It is best placed in the evening sky around May, when it crosses the meridian at about 10 pm local time (around midnight in April). It can be seen from everywhere north of 43°S and never sets north of 43°N.

At its highest it stands 87° up from 50°N, 78° up from 35°N, 43° up from the equator, 8° up from 35°S.

Facts

Type

Galaxy

Constellation

Canes Venatici

Designations

M 51, NGC 5194

Magnitude

8.4

Apparent size

14′ × 12′

Position

RA 13h 29.9m, Dec +47° 12′ (J2000)

Open AstroPilot to see when Whirlpool Galaxy (M 51) is highest tonight from your location, how easy it is with your telescope or binoculars, and an eyepiece view.