Andromeda VIII (And VIII / 8) is a
galaxy discovered in August 2003. It is a companion galaxy to the
Andromeda Galaxy
The Andromeda Galaxy (IPA: ), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy with the diameter of about approximately from Earth and the nearest large galaxy to the Milky Way. The gal ...
, M31, and evaded detection for so long due to its diffuse nature. The galaxy was finally discovered by measuring the
redshifts of stars in front of Andromeda, which proved to have different
velocities
Velocity is the directional speed of an object in motion as an indication of its rate of change in position as observed from a particular frame of reference and as measured by a particular standard of time (e.g. northbound). Velocity is a ...
than M31 and hence were part of a different galaxy.
As of at least 2006, the actuality of And VIII as a galaxy has not yet been firmly established (Merrett et al. 2006).
See also
*
List of Andromeda's satellite galaxies
References
External links
SEDS Webpage for Andromeda VIII
{{DEFAULTSORT:Andromeda 08
Andromeda Subgroup
Local Group
Andromeda (constellation)
Dwarf spheroidal galaxies
5056928
Astronomical objects discovered in 2003