1999MNRAS.309..739S

Query : 1999MNRAS.309..739S

1999MNRAS.309..739S - Mon. Not. R. Astron. Soc., 309, 739-749 (1999/November-1)

The intermediate age open cluster NGC 2660.

SANDRELLI S., BRAGAGLIA A., TOSI M. and MARCONI G.

Abstract (from CDS):

We present CCD UBVI photometry of the intermediate old open cluster NGC 2660, covering from the red giant region to about seven magnitudes below the main sequence turn-off. Using the synthetic colour-magnitude diagram method, we estimate in a self-consistent way values for distance modulus [(m-M)0≃12.2], reddening [E(B-V)≃0.40], metallicity ([Fe/H] about solar) and age (τ≲1Gyr). A 30per cent population of binary stars turns out to be probably present.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): Hertzsprung-Russell (HR) diagram - open clusters and associations: general - open clusters and associations: individual: NGC 2660

VizieR on-line data: <Available at CDS (J/MNRAS/309/739): table.dat>

Nomenclature: Electronic table: Cl* NGC 2660 SBT NNN (Nos 1-866).

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

CDS comments: calibrator PG 0918+019 misprint for PG 0918+029

Simbad objects: 18

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Number of rows : 18
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 Cl Berkeley 21 OpC 05 51 44.7 +21 48 36   12.26 11.1     ~ 130 0
2 NGC 2243 OpC 06 29 34.3 -31 16 58   10.12 9.4     ~ 298 0
3 NGC 2506 OpC 08 00 02.3 -10 46 22   8.28 7.6     ~ 313 0
4 BM IV 90 C* 08 42 33.8406416160 -47 12 25.304999004     11.80     C 27 0
5 Cl* NGC 2660 SBT 296 RB? 08 42 36.4272537240 -47 12 07.495126164   15.798 14.552   13.174 ~ 17 0
6 Cl* NGC 2660 SBT 318 RB? 08 42 36.7085622912 -47 10 37.296498756   15.401 14.110   12.713 ~ 12 0
7 NGC 2660 OpC 08 42 40.0 -47 11 59   9.05 8.8     ~ 164 0
8 Cl* NGC 2660 SBT 542 RB? 08 42 41.7185926800 -47 11 25.454997060   15.420 14.120   12.704 ~ 17 0
9 Cl* NGC 2660 SBT 694 RB? 08 42 45.4330931736 -47 11 18.916370232   15.674 14.368   12.938 ~ 17 0
10 Cl* NGC 2660 SBT 862 RB? 08 42 50.6657557584 -47 13 03.817737264   15.602 14.315   12.909 ~ 17 0
11 PG 0918+029 HS* 09 21 28.2138172968 +02 46 02.254084824 11.975 13.056 13.327 13.456 13.615 sdB1VIIHe6 118 0
12 Cl Collinder 261 OpC 12 38 04.7 -68 22 40     10.7     ~ 216 0
13 PG 1323-086 HS* 13 25 39.4669501176 -08 49 19.067387484 12.660 13.341 13.481 13.529 13.608 sdB3IHe8 144 1
14 PG 1525-071 HS* 15 28 11.5771773672 -07 16 32.899212840 13.658 14.85 14.89 15.14 15.197 sdO 42 0
15 NGC 6253 OpC 16 59 06.4 -52 42 39     10.2     ~ 209 0
16 [L92b] Mark A HS* 20 43 59.2253596272 -10 47 41.696051820 11.854 13.010 13.256 13.370 13.494 sdO 75 1
17 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0
18 Cl* NGC 2660 HH 9009 * ~ ~   15.91 11.68     C 3 0

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