2003A&A...410..565A

Query : 2003A&A...410..565A

2003A&A...410..565A - Astronomy and Astrophysics, volume 410, 565-575 (2003/11-1)

Searching for unknown open clusters in the Tycho-2 catalog.

ALESSI B.S., MOITINHO A. and DIAS W.S.

Abstract (from CDS):

We present 11 new open cluster candidates found in a systematic search for unknown star clusters using the astrometric and photometric data included in the Tycho 2 catalog. The possible existence of these stellar aggregates is supported by the analysis of proper motions, color-magnitude diagrams, stellar density distributions, and by the visual inspection of the Digitized Sky Survey (DSS) plates. With these tools we were able to determine mean absolute proper motions as well as preliminary reddenings, distances and ages for the majority of the candidates. We found that most of them are possibly nearby (closer than ∼600pc) open clusters never studied before.

Abstract Copyright: ∼

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

Nomenclature: Tables 1, 2: CL Alessi NN N=11 among (Nos 1-19).

CDS comments: Table 3 : component C of HIP 52436 not in Simbad.

Simbad objects: 45

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Number of rows : 45
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Cl Blanco 1 OpC 00 03 24.7 -29 57 29           ~ 325 0
2 Cl Alessi 1 OpC 00 53 22.3 +49 32 10           ~ 47 0
3 NGC 1252 err 03 10 49 -57 46.0           ~ 37 0
4 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
5 Cl Alessi 2 OpC 04 46 24.5 +55 11 56           ~ 40 0
6 HD 233008 * 04 47 51.8172720504 +55 08 02.426752320   9.50 9.34     A3 14 0
7 NGC 1662 OpC 04 48 47.5 +10 52 55   7.0 6.4     ~ 137 0
8 HD 56264 * 07 14 10.3802308080 -46 19 33.256678332   8.25 7.29     G8III 22 0
9 HD 56857A * 07 16 35.9611540080 -46 14 16.898174448   8.43 8.23     A1(m)A9-F0/2 19 0
10 Cl Alessi 3 OpC 07 17 06.0 -46 08 31           ~ 49 0
11 IC 2391 OpC 08 41 10.1 -52 59 28           ~ 822 0
12 V* EY Car cC* 10 42 23.0317207392 -61 09 57.295281744   11.05 10.35     ~ 78 0
13 HD 93010 * 10 43 09.4253056320 -61 10 06.721466988 6.07 6.63 6.63     B3III 46 0
14 CPD-60 2203B * 10 43 09.5942122248 -61 10 19.069124448   7.89 7.87     ~ 18 0
15 Cl Alessi 5 OpC 10 43 16.6 -61 04 52           ~ 49 0
16 HD 93207 * 10 44 26.8875220584 -61 21 48.904479288   8.54 8.55     B9V 18 0
17 HD 127804 * 14 36 27.3420438408 -66 13 51.233553300   9.65 9.46     B9III 11 0
18 HD 128107 * 14 38 07.6499035080 -66 07 46.679932596   10.68 10.40     A2/3III/IV 15 0
19 HD 128216 * 14 38 46.8514807776 -66 07 52.343500116   8.97 8.86     B8/9III 12 0
20 HD 128384 * 14 39 36.9267263136 -65 49 27.798644100   10.34 9.99     A7/9III 13 0
21 Cl Alessi 6 OpC 14 40 13.9 -66 07 37           ~ 34 0
22 Cl VDBH 164 OpC 14 49 14.6 -66 27 54           ~ 46 0
23 Cl Alessi 8 OpC 15 29 37.9 -51 13 37           ~ 30 0
24 HD 160263 * 17 41 16.2430825872 -46 55 18.611215428 5.72 5.78 5.79     A0V 61 0
25 V* V867 Ara EB* 17 42 21.1758044 -46 17 55.957111   7.55 7.46     A0/1V 18 0
26 Cl Alessi 9 OpC 17 43 53.8 -47 01 41           ~ 45 0
27 HD 168131 * 18 17 52.0894726656 +11 52 39.913646592 6.37 6.954 7.050     B8 20 0
28 Cl Alessi 19 OpC 18 18 57.8 +12 18 40           ~ 38 0
29 HD 168431 * 18 19 05.9897141640 +12 11 35.924804304 6.35 7.00 7.09     B8 17 0
30 HD 168440 * 18 19 14.1763739184 +12 32 02.232218040   7.38 7.48     B8 11 0
31 HD 168498 * 18 19 35.0271970176 +11 52 13.641632400   7.59 7.58     A0 10 0
32 Cl Alessi 10 OpC 20 04 55.9 -10 33 18           ~ 35 0
33 HD 190388 * 20 05 00.4124281224 -10 34 51.960727020   8.91 8.85     B9(IV) 16 0
34 HD 190389 * 20 05 03.1536373368 -10 43 33.694215816   9.28 9.20     B9IV/V 11 0
35 V* GR Sge LP* 20 20 31.3459196520 +18 23 49.756953732       14.97   ~ 7 0
36 V* UV Del LP* 20 20 54.3487069728 +18 21 21.900924720   14.00 12.57 11.90   K5 2 0
37 V* BW Del SB* 20 21 06.4963800528 +18 23 10.992568416   11.57 11.28     F 24 0
38 Cl Alessi 11 Cl* 20 21 12 +18 24.0           ~ 4 0
39 V* BX Del WV* 20 21 18.9701299392 +18 26 16.298607264   12.35 11.99     F5 44 0
40 HD 197516 * 20 43 25.1038096632 +23 38 41.023578156   7.92 8.00     A0 12 0
41 Cl Alessi 12 OpC 20 43 30.0 +23 52 16           ~ 44 0
42 HD 197532 * 20 43 33.3471038328 +23 31 41.590927524   8.12 8.19     A0 10 0
43 HD 197681 * 20 44 35.3614770456 +23 37 29.875687248   8.05 8.10     A0 14 0
44 NGC 6994 err 20 59.0 -12 38           ~ 32 0
45 NGC 7092 OpC 21 31 33.4 +48 14 49           ~ 223 0

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