1995A&A...299...53M

Query : 1995A&A...299...53M

1995A&A...299...53M - Astronomy and Astrophysics, volume 29953-61 (1995/7-1)

Red giants in open clusters. IV. NGC 3680 and IC 4651.

MERMILLIOD J.-C., ANDERSEN J., NORDSTROEM B. and MAYOR M.

Abstract (from CDS):

Radial-velocity observations of 35 red giants in the field of the intermediate-age open clusters NGC 3680 and IC 4651 are presented and analysed for membership and duplicity. Five stars in NGC 3680 and one in IC 4651 were identified as non-members, and six and five spectroscopic binaries, respectively, were discovered among the red giant members in the two clusters. Orbits have been determined for seven of the binaries, four of which are still preliminary. The mean cluster velocities of NGC 3680 and IC 4651 are 0.9±0.2km/s and -31.0±0.2km/s respectively. The morphology of the red giant region in the colour magnitude diagrams shows a well-populated clump in both clusters. In both clusters, one certain member star is clearly brighter and redder than the clump, while IC 4651 shows, in addition, a probable concentration of stars on the ascending giant branch.

Abstract Copyright: ∼

Journal keyword(s): open clusters: individual: NGC 3680 , IC 4651 - binary: close - stars: late-type - stars: Hertzsprung-Russel diagram

VizieR on-line data: <Available at CDS (J/A+A/299/53): n3680 i4651>

Nomenclature: IC 4651 NNN (Nos 241, 244, 811, 812, 815, 817) added.

Simbad objects: 38

goto View the references in ADS

Number of rows : 38
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 752 OpC 01 56 53.7 +37 45 06           ~ 712 0
2 NGC 3680 17 * 11 25 10.0308705360 -43 09 26.827356456   13.06 12.05     ~ 13 0
3 Cl* NGC 3680 KGP 1164 * 11 25 15.2501055768 -43 07 44.327841816   12.889 11.877     ~ 7 0
4 CD-42 6963 * 11 25 16.1744004384 -43 14 24.079251516   11.93 10.78     ~ 50 0
5 CD-42 6962 SB* 11 25 16.2054727176 -43 08 59.976131892   12.74 11.96     ~ 19 0
6 NGC 3680 OpC 11 25 19.8 -43 14 38   8.40 7.6     ~ 340 0
7 CD-42 6971 * 11 25 26.2329251328 -43 11 23.989609392   11.18 10.17     G5III 46 0
8 CD-42 6974 * 11 25 29.2495299072 -43 15 47.797382124   12.01 10.94     ~ 35 0
9 CD-42 6977 * 11 25 38.0643019800 -43 16 06.379106556   12.1 10.8     ~ 45 0
10 CD-42 6976 MS* 11 25 38.6652469728 -43 13 58.792503612   11.56 10.69     G0V 41 0
11 CD-42 6978 SB* 11 25 41.9407631736 -43 17 06.905574420   11.93 10.78     ~ 51 0
12 CD-42 6981 * 11 25 48.5315765064 -43 09 52.530808176   12.043 10.886 10.08 9.829 ~ 65 0
13 CD-42 6983 * 11 25 49.9058331792 -43 12 15.712705908   11.3 10.02     K0III 43 0
14 NGC 3680 50 * 11 26 24.8181008928 -43 15 25.612303716   12.70 11.87     G8IV 14 0
15 NGC 3680 53 * 11 26 36.4327300968 -43 15 13.920198264   11.8 10.7     K1IV 38 0
16 NGC 3680 64 * 11 26 38.9388894792 -43 21 08.435765988   13.01 12.03     ~ 13 0
17 HD 99524 * 11 26 39.8048739552 -43 14 43.129078476   10.14 8.93     K2III 18 0
18 IC 4651 815 * 17 24 06.7691224008 -49 50 38.117731524   12.13 11.19     ~ 4 0
19 CD-49 11399 * 17 24 33.4011541224 -49 54 56.091318048   11.79 10.44     ~ 29 0
20 IC 4651 97 SB* 17 24 35.6839360848 -49 56 27.200548824   12.15 10.88     K1/K2II 26 0
21 CD-49 11401 * 17 24 41.5351328856 -49 59 06.472009932   11.401 10.363     ~ 47 0
22 CD-49 11402 * 17 24 46.7176119264 -49 54 06.987841164   12.027 10.894     ~ 47 0
23 CD-49 11403 SB* 17 24 47.4203216568 -49 50 19.129516080   12.62 11.08     ~ 15 0
24 CD-49 11405 * 17 24 48.3780109632 -49 45 44.925957396   11.74 10.72     ~ 9 0
25 IC 4651 OpC 17 24 48.5 -49 55 23           ~ 374 0
26 IC 4651 29 * 17 24 49.4898016320 -49 57 26.935027812   12.03 10.90     K0III 38 0
27 CD-49 11404 * 17 24 50.0710852992 -49 56 56.079791376   11.5 10.7     ~ 58 0
28 CD-49 11415 * 17 24 54.1498716864 -49 53 07.518967440   11.76 10.44     ~ 44 0
29 IC 4651 241 SB* 17 24 56.5565133384 -49 50 04.822729800   12.15 10.970     ~ 15 0
30 CD-49 11410 * 17 24 57.7608923184 -50 01 32.964118680   11.89 10.78     ~ 36 0
31 IC 4651 812 * 17 25 03.0270115512 -50 04 17.562097668   12.01 11.09     ~ 21 0
32 CD-49 11413 * 17 25 04.2659268888 -49 58 24.720883788   10.0 10.19     G5 33 0
33 CD-49 11417 * 17 25 08.9395734624 -49 53 57.123001032   10.7 8.94     K2 40 0
34 IC 4651 137 * 17 25 13.2150725040 -49 59 29.431690224   11.27 11.00     K0III 33 0
35 CPD-49 9973 SB* 17 25 21.7869171144 -49 52 58.848604608   11.62 10.61     ~ 23 0
36 IC 4651 146 * 17 25 23.5409449896 -49 55 47.062096320   12.08 10.94     K0III 35 0
37 CD-49 11421 SB* 17 25 24.3777309744 -49 58 52.737097152   11.6 10.6     ~ 22 0
38 IC 4651 811 * 17 26 01.4206301352 -49 54 28.421441208   11.87 10.71     KIII: 21 0

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