2006A&A...445..493M

Query : 2006A&A...445..493M

2006A&A...445..493M - Astronomy and Astrophysics, volume 445, 493-501 (2006/1-2)

Open clusters in the Third Galactic Quadrant. II. The intermediate age open clusters NGC 2425 and NGC 2635.

MOITINHO A., CARRARO G., BAUME G. and VAZQUEZ R.A.

Abstract (from CDS):

We analyse CCD broad band (UBV(RI)_C) photometric data obtained in the fields of the poorly studied open clusters NGC 2425 and NGC 2635. Both clusters are found to be of intermediate age thus increasing the population of open clusters known to be of the age of, or older than, the Hyades. More explicitly, we find that NGC 2425 is a 2.2Gyr old cluster, probably of solar metallicity, located at 3.5kpc from the Sun. NGC 2635 is a Hyades age (600Myr) cluster located at a distance of 4.0kpc from the Sun. Its Colour Magnitude Diagram reveals that it is extremely metal poor for its age and position, thus making it a very interesting object in the context of Galactic Disk chemical evolution models.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: open clusters and associations: individual: NGC 2425, NGC 2635

VizieR on-line data: <Available at CDS (J/A+A/445/493): table2.dat table3.dat>

Nomenclature: Table 2: Cl* NGC 2425 MCB NNNN (Nos 1-3304). Table 3: Cl* NGC 2635 MCB NNNN (Nos 1-3113).

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

Simbad objects: 18

Full paper

View the references in ADS

Number of rows : 18

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag B	Mag V	Sp type	#ref 1850 - 2023	#notes
1	Cl Melotte 25	OpC	04 29 47.3	+16 56 53			~	2960	0
2	NGC 2204	OpC	06 15 31.7	-18 40 12	9.35	8.6	~	148	0
3	Cl Ruprecht 4	OpC	06 49 00	-10 31.4			~	43	0
4	Cl Berkeley 33	OpC	06 57 49.4	-13 13 37			~	86	0
5	NGC 2425	OpC	07 38 18.5	-14 53 06			~	48	0
6	NGC 2420	OpC	07 38 24.5	+21 34 30	9.0	8.3	~	461	0
7	NGC 2571	OpC	08 18 54	-29 46.5	7.16	7.0	~	74	0
8	NGC 2580	OpC	08 21 29.0	-30 18 22		9.7	~	21	0
9	NGC 2588	OpC	08 23 11	-32 58.3		11.8	~	20	0
10	NGC 2635	OpC	08 38 28.6	-34 46 37	12.06	11.2	~	35	0
11	Cl Pismis 8	OpC	08 41 38	-46 16.3	10.10	9.5	~	38	0
12	C 0920-509	Cl*	09 22 07	-51 06.1	10.77	10.2	~	15	1
13	Cl Pismis 15	OpC	09 34 44.2	-48 02 24			~	31	0
14	NGC 6404	OpC	17 39 39.8	-33 13 26		10.6	~	46	0
15	NGC 6583	OpC	18 15 50.9	-22 08 35		10.0	~	70	0
16	NAME CMa Region	reg	~	~			~	45	0
17	NAME Pup Vel Region	reg	~	~			~	6	0
18	NAME Norma-Cygnus Arm	reg	~	~			~	77	0

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