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110 stars in Collinder 223
(cr223.pos)
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The list below provides coordinates and
identifications for stars in
the field of Collinder 223. The cluster was observed photometrically
by
Claria & Lapasset, who provided a good chart. Unlike most studies, the
numbering scheme spirals inward to the cluster center rather than outward.
The cluster position is some 16' in error in both SIMBAD and WEBDA,
and the Dias et al catalogue also copies the erroneous Lund position.
The position error was corrected by Timo Karhula, and appears in the 2003
Archinal & Hynes "Star Clusters" monograph. I have adopted as the
center
the position of star 80 = HD 305218, which is similar to Karhula's.
Because
of a strong obscuration eastward across the area, the center is not well
defined.
In SIMBAD the star-list appears essentially without coordinates apart
from a few HD stars, and many entries need to be linked.
The Blanco & Munch red star, BM V 221, is incorrectly linked to HD 91156,
but is instead star 85, which is the bright red IRAS source near the cluster
center. This has spectral type M3 according to the spectral survey by
MacConnell and M4/5 by Loden et al, but called 'k4iii' from DDO indices by
Claria & Lapasset---the IRAS/MSX detection and 2MASS colors confirm the
types
from spectra, however. MacConnell's type, M3, is probably to be
preferred.
I show complete UCAC2, Tycho-2, and HD/CD/CPD names for the stars,
and copy the Claria & Lapasset V magnitudes rounded to 0.1-mag precision.
I determined the HD/CD/CPD names using the relevant HDE chart, and by
overlaying plots of the Durchmusterungen at the scale of the C&L chart.
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