NGC 2223. The most conspicuous rows are located at the ends of its
spiral arms. In general, they are rather diffuse, although they are
interspersed with bright H II regions. Overall, the galaxy exhibits a
complex spiral pattern, which is asymmetric about the galaxy center.
Feb 3/4, 1978
103aO + GG385
The multiple arms in NGC 2223 are thicker
and slightly less well defined than in NGC 3124,
above, but the spiral pattern is similar. The
redshift of NGC 2223 is v_o = 2529 km/s. The
HII regions are unresolved.
Overexposed elongated nucleus, faint (r'): 0.8 x 0.6,
patchy arms with several stars superposed. Several faint galaxies near.
Near plate edge.
=ESO 489- G 49
Excellent type example.
Several very useful HII regions that will clearly resolve
at about the 3 arcsec level that is consistent
[within one-sigma(D)] with vo = 2529 km/sec, Ho = 50 km/sec/Mpc and
the mean calibration of (D) = 460 pc for largest HII regions in
ScI galaxies (Sandage A., and Tammann, G. 1974, Ap. J., 190, 525).
= NGC 2223
companion at 3.5, 340, 0.6 x 0.15, diffuse;
companion at 4.8, 118, 0.3 x 0.1
Small, bright nucleus
with a star close-by.
Weak bar in a
faint (r): 0.95 arcmin x 0.85 arcmin.
Several filamentary arms.
Low surface brightness.