NGC 1511.---SBd?: Nearly edge-on. SW side of bulge is hidden by a
prominent dust band, indicating that the bulge is small. Inner SE
spiral arm has several very bright star-forming knots. Arms do not
appear very extended (may be due to foreshortening), but there is an
extended, featureless LSB disk beyond the arms.
Sc pec or Amorphous?
Feb 20/21, 1979
103aO + GG385
NGC 1511 insert
Jan 12/13, 1981
103aO + GG385
NGC 1511 is an apparent triplet with
NGC 1511A (Amorphous or BCD; not in the RSA) at
a separation of 11.1' and NGC 1511B (Sd or Sm
on edge; also not in the RSA) at a separation of
7.6'. The known redshifts are v_o(1511) = 1142 km/s
and v_o(1511B) = 1101 km/s. At the
redshift distance of 22 Mpc (H = 50) the
projected linear separations from NGC 1511 are
71 kpc and 49 kpc.
The complex line of presumed HII regions at
the edge of the thick opaque dust lane is well seen
in the short-exposure insert print.
Faint loops south-following end, very faint extension.
Overexposed center with dark lane, plumes and loops. Very faint
extension. Possible I0.
Overexposed center. Very faint extension and plumes.
=ESO 055- G 04
largest in group
Nearly on edge.
Emission lines in hot spots, plus well-developed hydrogen
absorption lines across the high-surface-brightness disk.
(Sandage, A.R. 1978, A.J., 83, 904).
No bright nucleus.
Correction to NGC Dec.
in M.N.R.A.S., 81, 601, 1921, is an error.
Suspected SN = HV 11970 (HB 917, 1943) was not confirmed,
see Harv. Rep. 387.