NGC 5483.---SBc: Small bulge embedded in a small lens/ bar. Two
smooth, well-defined spiral arms emerge from the ends of the bar. Arms
emerge at right angles to the bar P.A. and can be traced for ~180deg
before fading. Inner arms have some evidence for knots, but outer arms
are quite smooth. Arms become much wider and more diffuse at ~180deg.
P.A. of outer isophotes is ~90deg offset from that of bar/lens
Aug 6/7, 1980
103aO + GG385
The two principal grand design arms are of
the prototype (s) configuration, yet the entire
disk is filled with spiral arcs, many of which are
dust lanes. These arcs are not branch fragments
from the principal arms. Rather they originate in
the disk independently, like the arms in the MAS
prototype galaxy NGC 2841.
One large HII complex appears to be multiple,
having a combined halo diameter of about
4". The redshift of NGC 5483 is v_o = 1517 km/s.
2 bright arms, patchy, dust patches. Diffuse envelope.
Overexposed center, short bar? Very faint outer arms.
2 strong arms, faint outer arm north. Similar to NGC 5364.
Two thin bright arms close to nucleus that branch and
become of low surface brightness further out.
One large (approximately 5 arcsec) HII region
and several additional smaller ones.
No nucleus. Bright middle.