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With the easy availability of the all-sky 2MASS catalogue in VizieR,
I have had another look at the coordinates for variables near NGC 6712
(http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/Mail/vsnet-id/msg00584.html),
which I first looked at in February 2002.
I have re-examined the stars on large-scale DSS1/2 and 2MASS images using
SkyView, and have added two variables included in the Clement et al. variables
list for this cluster and one by Walker in the near field.
For V19, I found that my original list had a +1s RA error (typo), which
is corrected here. For the remainder there are no substantial changes apart
from small adjustments.
\Brian
-------------------------------------------------------------------------------
Coordinates and identifications for variables near NGC 6712
version: 13 Feb 2002
chart sources: 1966ApJ...144..886S
SANDAGE A. and SMITH L.L.
Astrophys. J., 144, 886-893 (1966)
The colour-magnitude diagram of the metal-rich globular
cluster NGC 6712.
1966ApJ...144..894S
SANDAGE A., SMITH L.L., and NORTON R.H.
Astrophys. J., 144, 894-902 (1966)
Photometry of the variable stars in the globular
cluster NGC 6712.
1966ApJ...144..903S
ROSINO L.
Astrophys. J., 144, 903-915 (1966)
Variable stars in the globular cluster NGC 6712.
1988AJ.....96..105C
CUDWORTH K.M.
Astron. J., 96, 105-115 (1988)
Astrometry and photometry in the globular cluster NGC 6712.
position sources (column 's'):
b USNO-B1.0 (I/284)
g GSC-2.2 (I/271)
M 2MASS (II/246)
s SkyView estimate (+/- 2")
SAW RA (J2000) Dec s GSC <V> <B-V> remarks
V1 18 52 59.84 -08 42 31.1 M 16.1 0.8 MP Sct
V2 18 53 08.78 -08 41 56.6 M 5693-3252 13.0 2.1 AP Sct
V3 18 53 02.28 -08 43 47.2 M 16.2 0.9
V4 18 53 16.27 -08 42 38.1 M 16.5 0.9
V5 18 53 08.67 -08 43 23.5 b 16.0 0.8
V6 18 53 05.3 -08 42 53 s 16.1 0.8
V7 * 18 52 55.38 -08 42 32.5 M 12.7 1.9 CH Sct
V8 18 53 05.65 -08 41 12.2 M 13.2 2.0 MR Sct
V9 * 18 53 03.65 -08 37 22.6 g crowded
V10 18 52 57.33 -08 41 43.9 M 5693-7161 13.6 2.1
V11 18 52 56.34 -08 47 53.5 M 16.1 1.0
V12 18 53 06.00 -08 41 33.4 M 16.2 0.8
V13 18 52 57.75 -08 41 46.5 M 16.1 0.7 MN Sct
V14 18 52 34.34 -08 41 45.1 M LR Sct, <mb> ~16.6
V15 18 53 20.97 -08 42 48.0 M MW Sct, <mb> ~16.1
V16 18 52 54.54 -08 39 17.0 M LZ Sct
V17 18 53 05.84 -08 41 23.3 M 15.0 0.6 NSV 11462
V18* 18 53 02.4 -08 42 13 s 16.1 0.8
V19 18 53 03.2 -08 41 40 s 15.9 0.8 +1s RA error previously
V20 18 53 04.13 -08 42 03.7 M 16.2 0.7
V21 18 52 58.79 -08 42 06.1 M 5693-3648 13.5 2.2 ID from Cudworth
KC460 18 52 59.06 -08 41 20.3 M 16.2 0.8
* 18 53 05.57 -08 39 27.3 M 13.5 1.9 NSV 24622
Notes
V7 MSX5C G025.3347-04.2879.
V9 CV? about mb ~19 at quiescence, and mb ~17 during outbursts;
short-lived maxima, frequent outbursts.
V18 possibly 1RXH J185302.6-084214 ?
NSV 24622 found by Walker; southeastern star of 7" pair.
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