1996BaltA...5..445P


Query : 1996BaltA...5..445P

1996BaltA...5..445P - Baltic Astronomy, 5, 445-450 (1996)

Observations of clusters using the Stromvil system. I. Standard areas.

PHILIP A.G.D., BOYLE R.P. and STRAIZYS V.

Abstract (from CDS):

A set of standard areas of the Stromvil system is described. Preliminary values of the color indices for standard stars for photoelectric work may be obtained from their published values in both parent (uvby and Vilnius) systems. Stars in 19 open clusters already observed in both systems may be used as preliminary standards. Standard areas for the CCD work are to be measured anew. For this, a set of 12 compact open clusters and globular clusters have been selected, six areas in each hemisphere, mostly at declinations +30 deg and –30 deg. The 10–20 arcmin areas will contain standard stars of 10–16 mag. They will be good for fixing the zero-point of magnitudes and color indices, for the determination of extinction coefficients in the Earth's atmosphere and for the determination of color equations between instrumental CCD systems and the standard Stromvil system. The first observations in this program are planned with the new 1.8-m Vatican telescope on Mt. Graham, Arizona.

Abstract Copyright: ∼

Journal keyword(s): techniques: photometric stars: standard galaxy: areas - open clusters - globular clusters

Simbad objects: 30

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Number of rows : 30
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 NGC 129 OpC 00 30 25.8 +60 12 44   7.33 6.5     ~ 216 0
2 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
3 NGC 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
4 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
5 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
6 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
7 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
8 M 37 OpC 05 52 18.6 +32 32 36           ~ 436 0
9 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
10 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
11 NGC 2818 OpC 09 16 10.8 -36 37 09           ~ 108 1
12 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
13 SA 57- reg 13 08 38 +29 23.1           ~ 179 0
14 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
15 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
16 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
17 NGC 6405 OpC 17 40 14.5 -32 14 16           ~ 235 0
18 M 23 OpC 17 56 56.2 -18 58 21           ~ 144 0
19 M 16 OpC 18 18 45.1 -13 47 31           ~ 1084 1
20 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
21 NGC 6705 OpC 18 51 03.7 -06 16 18   6.32 5.8     ~ 442 0
22 NGC 6811 OpC 19 37 21.8 +46 22 43   7.47 6.8     ~ 435 0
23 NGC 6910 OpC 20 23 12.2 +40 46 16           ~ 202 0
24 M 29 OpC 20 23 42.9 +38 29 25   7.30 6.6     ~ 256 0
25 NGC 7039 OpC 21 10 35.0 +45 36 09   8.06 7.6     ~ 73 0
26 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
27 NGC 7092 OpC 21 31 04.0 +48 17 47           ~ 245 0
28 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0
29 NGC 7686 OpC 23 29 41 +49 10.2   6.79 5.6     ~ 22 0
30 NGC 7789 OpC 23 57 19.4 +56 43 28   7.68 6.7     ~ 575 0

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