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[vsnet-chat 1051] SV Sge
- Date: Thu, 16 Jul 98 11:20:46 -0700
- To: vsnet-chat@kusastro.kyoto-u.ac.jp
- From: aah@nofs.navy.mil
- Subject: [vsnet-chat 1051] SV Sge
- Sender: owner-vsnet-chat@kusastro.kyoto-u.ac.jp
Since there has been some question about this carbon star field, I checked
it last night, and got the following results (all coordinates J2000):
star RA DEC V verr B-V bverr
SV Sge 19:08:11.77 +17:37:41.2 15.639 0.02 2.423 0.04
comp 19:08:11.33 +17:37:26.5 14.800 0.02 0.831 0.02
(Simbad coordinates for SV Sge: 19:08:11.8 +17:37:39)
(Hipparcos coordinates: 19:08:11.78 +17:37:41.2)
(observation date for the above photometry: HJD 51010.8365)
The 149 comparison star is therefore about 16 arcsec SW of the variable, and
so difficult to confuse if a reasonable finding chart is used.
Arne
--------------------------------------------------------------------
Arne Henden Instruments/software/CCDs
US Naval Observatory Flagstaff Station Cepheids/photometry/IR
P.O. Box 1149 http://ftp.nofs.navy.mil
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