And IV was only recently recognized (Ferguson et al. 2000) as a
low mass dwarf in the background (at 5 to 8 Mpc distance) of
M 31, rather than being closely associated with M 31 as had
been thought previously. In fact, together with UGC 12894,
UGC 64 and UGC 288, And IV forms a nearby filament of low-mass
This object was discovered by van den Bergh (1972) who concluded that
it was either a relatively old star cloud in the outer disk of M31 or a
background dwarf galaxy. Jones (1993) argues convincingly that And IV is,
in fact, a star cloud in the disk of M31.
= Andromeda IV
Description and Dimensions:
Ap. J. (Letters), 171, L31, 1972.
M.N.R.A.S., 169, 607, 1974.