NGC 3865 (CS)
The lack of any dust on the far side of the galaxy disk makes it
difficult to determine the coherence of the dust lanes, although the
large amount of fragmentation at approximately a kiloparsec from the
nucleus suggests that this spiral is chaotic.
May 10/11, 1980
103aO + GG385
The spiral arms of NGC 3865 are thin and peculiar. They form an
almost-complete internal ring, from which a single-armed, spiral
pattern emerges. The form may be due to an encounter [one galaxy
dropping through another, as in Theys and Spiegel (1976, 1977) and
Lynds and Toomre (1976)]. The second bright image inside the thin
spiral near-ring at position angle 11 o'clock is a separate galaxy,
though presently (1990) of unknown redshift, which would fit the model
for the ballistic galaxy set out by these authors.
= NGC 3854
Note correction to NGC coordinates
= Helwan 260? (helwan 22);
Many small galaxies in field.
From the southwest with [L] is either a star, or [N] 16 mag, in contact.