Messier 33

Spiral Galaxy M 33 (NGC 598), type Sc, in Triangulum

Triangulum Galaxy

[M33 image]

RA:
01 : 33.9
Dec:
+30 : 39
Type:
SA(s)cd II-III
RV:
+ 3 km/s
Distance:
3000 kly
Apparent Dimension:
67.0 x 41.5 arc min
Diameter:
60 kly
Brightness:
5.7 mag vis
Abs. Mag:
19.1 Mag vis
Mass:
25000 million suns
According to semi-recent work of the early 1990s, M33 is a bit farther away from us than the Andromeda Galaxy M31. Using refined Cepheid distances from Hipparcos results, a distance of 3.0 million lightyears results (previous values have been given at about 2.5 million lightyears). It is thus the most remote object visible to the average observer's naked eye under good observing conditions.

Our image of the Triangulum Galaxy M33 was obtained by David Malin with the Isaac Newton Telescope and is copyrighted © Australian Astronomical Observatory / Royal Greenwich Observatory / Isaag Newton Group.

  • More information on this image (David Malin)

    [Local Group Home] | [SEDS] | [MAA] | [NGC] | [DSS] | [NED] | [SIMBAD] | [ADS]
    Hartmut Frommert
    Christine Kronberg
    [contact]

    Last Modification: December 31, 1999