Nov 7/8, 1980
The unusual morphology of NGC 2793 is
similar to NGC 337 above and NGC 4027 to the
right. The partial-ring morphology is also similar
to the ring galaxies attributed by Theys and
Spiegel (1976, 1977) and Lynds and Toomre
(1976) as due to plunging encounters, as
discussed on earlier pages of this atlas. A small,
undisturbed galaxy exists at the close separation
of 90", but its redshift is unknown and it may be
in the background. If so, the unusual morphology
of NGC 2793 would be endemic to the system,
not due to an encounter.
Possible interaction with small anon SB(rs)? at 1.7 arcmin
SB(s)m pec (de Vaucouleurs)
Blue patchy spiral arc on north edge
Short bright bar eccentric in south-following part
Companion 1.5, 313, 0.3 x 0.2, interaction?
Bright knotty bar: 0.3 arcmin x 0.14 arcmin.
Strong, asymmetric, knotty arm possibly due to interaction with a small,
anonymous SB(rs)? at 1.7 arcmin. Similar to NGC 2537.