2004A&A...418...99P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.12CEST11:38:15

2004A&A...418...99P - Astronomy and Astrophysics, volume 418, 99-102 (2004/4-4)

New variable stars in open clusters. I. Methods and results for 20 open clusters.

PAUNZEN E., ZWINTZ K., MAITZEN H.M., PINTADO O.I. and RODE-PAUNZEN M.

Abstract (from CDS):

We present high precision CCD photometry of 1791 objects in 20 open clusters with an age of 10Myr to 1Gyr. These observations were performed within the Δa photometric system which is primarily used to detect chemically peculiar stars of the upper main sequence. Time bases range from 30min up to 60-days with data from several nights. We describe the time series analysis reaching a detection limit of down to 0.006mag for apparent variability. In total, we have detected 35 variable objects of which four are not members of their corresponding clusters. The variables cover the entire Hertzsprung-Russell diagram, hence they are interesting targets for follow-up observations.

Abstract Copyright:

Journal keyword(s): Galaxy: open clusters and associations: general - stars: variables: general

Simbad objects: 43

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Number of rows : 43

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Cl* NGC 2439 PM 93 * 07 40 43.80 -31 40 26.8     15.91     ~ 2 0
2 NGC 2439 OpC 07 40 45 -31 41.6   7.31 6.9     ~ 129 0
3 NGC 2439 128 * 07 40 52.09 -31 40 26.5   15.05 14.72     ~ 3 0
4 NGC 2439 239 * 07 41 01.0056877419 -31 42 30.987223141     14.84     ~ 2 0
5 NGC 2489 28 * 07 56 14.8624342966 -30 04 47.491052905   13.57 13.25     ~ 3 0
6 NGC 2489 OpC 07 56 15 -30 03.8   8.58 7.9     ~ 66 0
7 NGC 2567 OpC 08 18 32 -30 38.4   7.77 7.4     ~ 74 0
8 NGC 2658 OpC 08 43 30 -32 39.9     9.2     ~ 34 0
9 NGC 3114 OpC 10 02 36 -60 07.2   4.47 4.2     ~ 166 0
10 Cl Melotte 105 OpC 11 19 42 -63 29.0   9.05 8.5     ~ 64 0
11 NGC 3960 OpC 11 50 33 -55 40.4   9.07 8.3     ~ 115 0
12 Cl Collinder 272 OpC 13 30 26 -61 19.0   8.25 7.7     ~ 50 0
13 NGC 5281 OpC 13 46 35 -62 55.0   6.15 5.9     ~ 70 0
14 Cl Pismis 20 OpC 15 15 23 -59 04.0   8.69 7.8     ~ 86 0
15 NGC 6134 OpC 16 27 46 -49 09.1   7.89 7.2     ~ 130 0
16 Cl* NGC 6134 PM 79 * 16 27 50.1050161115 -49 08 41.434610044     15.14     ~ 3 0
17 NGC 6134 42 * 16 27 55.5259205163 -49 09 06.487670219   12.59 12.19     ~ 6 0
18 NGC 6192 OpC 16 40 23 -43 22.0     8.5     ~ 66 0
19 NGC 6204 OpC 16 46 08 -47 01.2   8.51 8.2     ~ 109 0
20 NGC 6208 OpC 16 49 28 -53 43.7   8.06 7.2     ~ 63 0
21 Cl Lynga 14 OpC 16 55 00 -45 14.4   10.85 9.7     ~ 37 0
22 Cl* Lynga 14 PPM 1 * 16 55 04.79 -45 17 50.0     14.39     ~ 2 0
23 Cl* Lynga 14 PPM 50 * 16 55 15.7854073300 -45 12 34.489938190     14.78     ~ 2 0
24 Cl* Lynga 14 PPM 15 * 16 55 18.2147996143 -45 16 01.642274195     14.99     ~ 2 0
25 CD-34 11859 ** 17 37 35.84688 -35 00 42.5844 10.52         OB 10 0
26 NGC 6396 OpC 17 37 36 -35 01.6   9.41 8.5     ~ 37 0
27 CD-34 11864 V* 17 37 41.7350305463 -35 01 10.396623877   13.04 10.60     M4 11 0
28 Cl* NGC 6451 PM 35 * 17 50 34.11 -30 11 54.4     14.46     ~ 3 0
29 Cl* NGC 6451 PM 67 * 17 50 37.66 -30 12 27.5     14.06     ~ 4 0
30 NGC 6451 OpC 17 50 41 -30 12.6     8.2     ~ 41 0
31 NGC 6611 198 * 18 18 36.07 -13 47 58.4 13.74 13.8 13.21     Ae 9 0
32 M 16 OpC 18 18 48 -13 48.4   6.58 6.0     ~ 935 2
33 TYC 5689-133-1 * 18 18 49.3759070917 -13 46 50.044905432 12.4 12.65 11.83     B1V 21 0
34 NGC 6705 OpC 18 51 05 -06 16.2   6.32 5.8     ~ 354 0
35 GEN# +2.67050770 V* 18 51 11.3841761804 -06 16 15.820977986   14.230 13.699     ~ 8 0
36 NGC 6756 OpC 19 08 45 +04 43.0     10.6     ~ 28 0
37 Cl* NGC 6756 DAC 24 V* ~ ~     14.51     ~ 2 0
38 Cl* NGC 2658 PM 56 * ~ ~     16.73     ~ 1 0
39 Cl* NGC 6756 DAC 40 V* ~ ~     15.01     ~ 2 0
40 Cl* NGC 6756 DAC 21 V* ~ ~     14.44     ~ 2 0
41 Cl* Pismis 20 PPM 1 V* ~ ~     15.43     ~ 2 0
42 Cl* NGC 5281 PM 18 * ~ ~     13.47     ~ 2 0
43 Cl* Pismis 20 PPM 2 * ~ ~     16.04     ~ 2 0

    Equat.    Gal    SGal    Ecl

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2020.07.12-11:38:15

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