CDS

2003A&A...406..893B

Query : 2003A&A...406..893B

2003A&A...406..893B - Astronomy and Astrophysics, volume 406, 893-898 (2003/8-2)

NGC 6738: Not a real open cluster.

BOECHE C., BARBON R., HENDEN A., MUNARI U. and AGNOLIN P.

Abstract (from CDS):

A photometric, astrometric and spectroscopic investigation of the poorly studied open cluster NGC 6738 has been performed in order to ascertain its real nature. NGC 6738 is definitely not a physical stellar ensemble: photometry does not show a defined mean sequence, proper motions and radial velocities are randomly distributed, spectro-photometric parallaxes range between 10 and 1600pc, and the apparent luminosity function is identical to that of the surrounding field. NGC 6738 therefore appears to be an apparent concentration of a few bright stars projected on patchy background absorption.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: general - open clusters and associations: individual: NGC 6738

Nomenclature: Fig.1, Table 2: [BBH2003] NN (Nos 1-30).

Simbad objects: 31

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Number of rows : 31
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 HD 230358 * 19 00 15.5181184128 +11 48 39.873550176   10.83 10.515     F3V 5 0
2 HD 230385 * 19 00 39.7374361248 +11 44 41.576486640   10.30 9.512     G8V 5 0
3 TYC 1047-2104-1 * 19 00 46.3078880208 +11 57 17.361039564   12.04 12.209     A0III 3 0
4 TYC 1047-2770-1 * 19 00 50.1887174712 +11 54 33.904327320   12.09 12.209     A3V 3 0
5 HD 230401 * 19 00 54.1466529768 +11 37 02.548752672   11.09 11.087     A1V 5 0
6 HD 230400 * 19 00 55.7487457176 +11 54 04.994398188   11.52 10.350     K5 5 0
7 HD 230407 * 19 00 58.1857484592 +11 55 45.043932720   10.50 9.765     G8V 6 0
8 TYC 1047-2012-1 * 19 00 58.1997565632 +11 54 01.685942244   12.64 11.120     K3V 3 0
9 HD 230420 * 19 01 10.1839910520 +11 32 42.380277252   11.82 10.462     M 5 0
10 TYC 1047-1773-1 * 19 01 13.6789899864 +11 36 26.685611604   11.79 11.678     G6IV 3 0
11 TYC 1047-340-1 * 19 01 14.5937734008 +11 43 23.932422264   11.57 11.350     G0V 4 0
12 NGC 6738 OpC 19 01.3 +11 37     8.3     ~ 21 0
13 TYC 1048-360-1 * 19 01 19.8018825888 +11 35 52.098830916   12.00 11.262     K5 3 0
14 HD 176763 * 19 01 22.2294963648 +11 56 11.596153092   8.53 8.40     A4V 10 0
15 HD 230434 * 19 01 22.3423779312 +11 49 09.945514956   10.95 9.496     K7V 5 0
16 HD 230435 * 19 01 22.8971958072 +11 36 24.899997240   9.43 9.421     F2IV/V 6 0
17 HD 230443 * 19 01 26.9658392856 +11 47 21.662351808   10.70 10.866     A0III 5 0
18 HD 230444 * 19 01 29.0541657720 +11 40 21.795692124   10.60 10.473     F7IV/V 6 0
19 BD+11 3702 * 19 01 30.0700931664 +11 43 57.699616116   11.95 10.328     K7V 3 0
20 HD 176804 * 19 01 33.2696022600 +11 35 23.215062840   9.39 9.471     A1III 5 0
21 TYC 1048-726-1 * 19 01 43.8229696008 +11 32 33.655100748   11.50 11.00     A3III 3 0
22 HD 176848 * 19 01 47.9390710200 +11 27 18.764170092   8.81 7.74     G6IV 4 0
23 TYC 1048-582-1 * 19 02 02.9400766368 +11 36 28.300571064   12.17 12.199     A4V 3 0
24 HD 230498 * 19 02 32.9923434384 +11 35 25.178173368   11.46 11.283     A3V 5 0
25 IRAS 19002+1116 * 19 02 35.8673510112 +11 20 31.514796744   12.61 10.73     K5III: 2 0
26 HD 230497 * 19 02 36.8470925328 +11 46 17.526363096   10.53 9.96     F5V 6 0
27 HD 230510 * 19 02 49.0074505872 +11 39 25.813175940   11.72 11.460     F5IV/V 5 0
28 [BBH2003] 14 * ~ ~   12.23 11.95     A0III 1 0
29 [BBH2003] 11 * ~ ~   11.86 11.58     A2V 1 0
30 [BBH2003] 29 * ~ ~   12.44 11.75     F4IV 1 0
31 [BBH2003] 10 * ~ ~   11.90 11.28     F8V 1 0

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2023.10.03-07:08:59

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