In the early work by Sandage & Brucato (1979), weak spiral arms were detected in
the outer disk, although in RC3 this galaxy is classified as a weakly barred
peculiar S0. In our analysis NGC 3100 appears as a system with a large lens and
a bright nuclear component, which de Vaucouleurs & de Vaucouleurs (1964) already
paid attention to. Evidently, there are also weak asymmetric spiral arms in the
outer disk, as demonstrated by the image in which the disk model is subtracted
(Fig. 5). The bulge component is difficult to evaluate in this galaxy. It could
be the bright nuclear component, or perhaps there is no bulge at all. The larger
component fitted by a Sersic function is clearly the large lens having an
n-parameter (n = 1.8) typical for disky systems. As we were not able to fit the
small nuclear component, no B/T ratio is given in Table 6. This is our second
candidate of galaxies that might be an analog of late-type spirals among S0
= NGC 3103
Loop toward NGC 3095, 2 bright star superposed 1.4 south-following.
Companion 0.9 south-following.
=ESO 435- G 30
*RA of NGC 3103 off 0.8 minutes
Thin dust lane 1/3 way from central bulge into a bright disk.
The dust is not in a spiral pattern.
Similar to the lanes in NGC 1947 and NGC 2907 described previously.
Dust patches (similar to those in NGC 0205)
are silhouetted against the outer disk.
Two opposite smooth but very different outer arm-like
structures of old stars are present.
Non-interacting pair with NGC 3095 at 10.0 arcmin
Very bright nucleus. Faint bar with narrow dark lane on one side near
Non-interacting pair with NGC 3095 at 10.0 arcmin.