[vsnet-alert 9821] Re: (fwd) Supersoft X-ray source CAL 83 in an optical-high, X-ray off state

[Brian Skiff]

>>     CAL 83 (=LMC V4218) is located at: 05:43:33.5 -68:22:23 (J2000.0)


     Neither this position nor the one shown by SIMBAD is quite correct.
Better is:

USNO-B1.0 0216-0107121/22   5 43 34.15 -68 22 22.4  (average of two entries)
GSC-2.3 S1HF039761          5 43 34.14 -68 22 22.5

....no preference between these.  The star also appears in the Massey
LMC catalogue as [M2002] LMC 179146, with photometry:  V = 17.44,
B-V = -0.26, U-B = -0.93  (rms uncertainties of 0.20, 0.20, 0.09 resp).


\Brian