May 5/6, 1946
NGC 4592 resolves easily into HII-region
candidates and brightest stars that begin to
appear individually at about B = 20. This is
brighter by about 2 mag than the resolution level
of the spirals associated with the Virgo Cluster
(NGC 4321, NGC 4535, NGC 4303, NGC 4254,
etc.). The mean redshift of the Virgo
redshift of v_o = 903 km/s of NGC 4592 here,
yet the level of resolution of the stellar content is
different, suggesting velocity perturbations in the
expansion field in the direction of NGC 4592.
The region is complex (NGC 4592 is in the
southern extension of the Virgo Cluster), and the
redshifts there are not good distance indicators.
From the resolution level in NGC 4592 one
surmises that the distance modulus to this galaxy
is about m - M = 30 on the scale of m - M = 31.7
adopted for the Virgo Cluster.
SA(s)dm: (de Vaucouleurs)
Bright middle no bright nucleus. Partially resolved, extremely faint,
filamentary extensions. Slightly asymmetric.
Lund 9 and Heidelberg Veroff. Vol. 9, 1926 dimensions are for the bright