[vsnet-chat 4022] Re: Object Near GSC 770

[Taichi Kato <tkato>]

Re: [vsnet-chat 4014] Re: Object Near GSC 770

> V2220 Oph (Mira) is also neighbouring, but it is another star.  The
> chart of V2220 Oph (Terzan and Rutily, 1972, A&Ap, 16, 408, Fig. 4)
> shows no counterpart of star A, on the other hand stars B and C are
> clearly detected.  
> 
> # Comparing DSS2 with Terzan and Rutily chart, V2220 Oph should be
> # identical with an red USNO star at 17:36:42.185, -23:49:16.32
> # (J2000.0), whose r=15.0 and b=18.2.  The GCVS position of V2220 Oph
> # should be revised, as well as the variables referring the same
> # paper.

   The object is rather securely identified with the following 2MASS star.

2MASS 173642.178 -234916.19 (2000.0)  9.225  8.067  7.569

   Furthermore, there is a NSV star (NSV09220) even closer (but apparently
different) to Toni's suspected stellar image.

2MASS 173631.230 -234922.91 (2000.0)  6.863  5.713  4.969
IRAS17334-2347 173328.1 -234736 (1950.0)
    F12=3.31  F25=1.44  F60=1.00L F100=10.00L
    VAR=76 LRS=-1
 possibly II: variable star with 'young' O-rich circumstellar shell
 or VII: variable star with more evolved C-rich circumstellar shell
 or VIa: non-variable star with relatively cold dust at large
      distance, may be carbon-rich
173631.0 -234925 (2000.0) IRAS17334-2347 3.277 1.408 0.990L 10.390L 76%
173631.0 -234925 (2000.0) SSC17334-2347 3.277 1.408 0.990L 10.390L
173630.9 -234925 (2000.0) NSV09220 ? 15.6 (16.5 R -

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