Part of Arp 331 = IV Zw 038
In a chain of Ellipticals and Lenticulars:
including NGC 0375, NGC 0379, NGC 0380, NGC 0382, NGC 0383,
NGC 0385, NGC 0386, and NGC 0388
(= NGC 0384)
Along with ARK 027 and ARK 028.
this is part of a group containing ten galaxies.
(The brightest component is NGC 0353
= 3C 31 [Wyndham, OVRO Report, No. 13, 1965).
Radial velocity = +4,599 km/sec [HMS 1956].
S0 (de Vaucouleurs)
1st from south in a chain of 8 galaxies
See UGC 00689
One of the brighter members of the Group C2
which is a prominent part of the Pisces Cloud
m(pg) = 14.3
In a group of ellipticals and lenticulars including:
NGC 0375, NGC 0379, NGC 0380, NGC 0382, NGC 0383, NGC 0384,
NGC 0385, NGC 0386, and NGC0388
Brightest galaxy is NGC 0383.
P.A.S.P., 71, 191, 1961.
P.A.S.P., 73, 191, 1961.
A.J., 66, 545, 554, 1961.
5. NGC 383 Group
NGC 375, 379, 380, 382, 383, 384, 385, 386, and 388 are a group of nine galaxies
for which velocities are given by Humason et al. (1956). They form part of what
Hubble and Humason (1931) called the Pisces group, which, they suggested,
consisted of about 25 elliptical galaxies. They are the brightest members.
Zwicky (1937) has suggested that the group is contained in a large and elongated
cluster extending over 15 square degrees or more. The nine galaxies listed above
have rather a large velocity dispersion, and application of the virial theorem
gives galactic masses in the range 10^11^-10^13^ M_sun_ and mass-to-light ratios
of about 260 (Burbidge and Burbidge 1961c). Thus if these nine galaxies,
together with the other 16, form a separate physical group, as was suggested by
Hubble and Humason, then the group is probably unstable unless there is much
dark material present.