Andromeda III

Dwarf Spheroidal Galaxy Andromeda III (PGC 2121), type dE2, in Andromeda

[And III image]

RA:
00 : 35.4
Dec:
+36 : 31
Type:
dE2
RV:
Distance:
2900
Apparent Dimension:
Diameter:
3.0 x 4.5 arc min
Brightness:
13:
Abs. Mag:
Mass:
The dwarf spheroidal galaxy Andromeda 3, or And III, was discovered by Sidney van der Bergh on photographic plates taken in 1970 and 1971 with the Palomar 48-inch (1.2-meter) Schmidt telescope, together with And I, And II, and the presumable non- or background galaxy And IV (van den Bergh 1972).

And III is a dwarf companion of the Andromeda Galaxy M31 situated roughly 4 degrees south and 1 deg west (preceding) of the great neighbor, corresponding to a projected distance of about 150,000 ly.

Our image was obtained by Martin Germano, with a 14.5" f5 Newtonian, 150 minutes on hypered Tech Pan 2415.

References:


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Hartmut Frommert
Christine Kronberg
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Last Modification: July 25, 2001