[vsnet-alert 1756] T&B sequence around Messier 96

[bas@lowell.Lowell.Edu (Brian Skiff)]

     As far as I know, there is no published photometric sequence around
M96.  On the relevant chart from the Thompson & Bryan "Supernova Search Charts"
are shown V magnitudes evidently from several professional observers.  Below
are the positions and IDs for these stars (except a faint star very close to
the galaxy).  The name indicates the magnitude rounded to 0.1, e.g. "114"
means V = 11.4.

ID       RA  (2000)  Dec        GSC
114   10 46 23.9  +11 56 54  0849-0685
126   10 46 21.7  +11 44 29  0849-0703
131   10 46 32.7  +11 50 55  0849-0841
135   10 46 10.4  +11 42 50  0849-0887
143   10 46 52.9  +11 43 22  0849-0306
149   10 46 52.9  +11 52 42  0849-0206
150   10 46 32.7  +11 52 06  0849-0931

T&B give the sources for this data as Peter Birch et al. (Perth Observatory,
Western Australia), Bill Liller and Gonzalo Alcaino (CTIO?), and Marion Frueh
(probably McDonald Observatory).
     Since I complain that the IAUC's don't give a precise position for the
host galaxies of supernovae, the center of M96 is at:  10 46 45.6  +11 49 18
(2000), according to NED, which cites 1996 ApJS 107, 215, and claims an
accuracy of +/- 5 arcsec.

\Brian

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