Collinder 437

(NGC 7086; MWSC 3520; OCL 214; FSR 0309; FoF 343)

1.0 UTI

1.0

C_N

1.0

C_dens

1.0

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 890

Stellar density (N₅₀/rad) 94.9 [N/pc²]

C3 classification AA

C_N 1.0 Very rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Collinder 437 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is very well-studied in the literature.

Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Silver sample.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 437 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	322.623	51.593	0.598	-1.654	-1.659	-19.182
Wei et al.	2025	322.622	51.593	0.599	-1.652	-1.671	–
Almeida et al.	2025	322.624	51.589	–	–	–	–
Zhang et al.	2024	322.628	51.595	–	–	–	–
Hunt & Reffert	2024	322.628	51.595	0.6	-1.652	-1.664	-16.098
Cavallo et al.	2024	322.629	51.586	0.6	–	–	–
Hunt & Reffert	2023	322.628	51.595	0.6	-1.652	-1.664	-16.098
Almeida et al.	2023	322.606	51.592	–	–	–	–
Just et al.	2023	322.607	51.604	–	–	–	–
Jaehnig et al.	2021	322.626	51.599	0.621	-1.655	-1.623	–
Rain et al.	2021	322.624	51.593	0.59	-1.656	-1.629	–
Dias et al.	2021	322.624	51.589	0.586	-1.644	-1.626	-17.964
Cantat-Gaudin et al.	2020	322.624	51.593	0.59	-1.656	-1.629	–
Sánchez et al.	2020	322.613	51.6	–	-1.539	-1.74	–
Cantat-Gaudin & Anders	2020	322.624	51.593	0.59	-1.656	-1.629	–
Liu & Pang	2019	322.623	51.588	0.587	-1.649	-1.642	–
Soubiran et al.	2018	322.624	51.593	–	–	–	-22.34
Bica et al.	2019	322.627	51.581	–	–	–	–
Cantat-Gaudin et al.	2018	322.624	51.593	0.59	-1.656	-1.629	–
Kharchenko et al.	2016	322.607	51.604	–	–	–	–
Dias et al.	2014	322.612	51.6	–	-2.3	-0.1	–
Kharchenko et al.	2013	322.612	51.608	–	-3.2	2.04	-5.6
Gozha et al.	2012	322.612	51.6	–	–	–	–
Kharchenko et al.	2012	322.612	51.608	–	-3.2	2.04	-5.6
Kharchenko et al.	2007	322.6	51.6	–	0.1	–	–
van den Bergh	2006	322.625	51.583	–	–	–	–
Chen et al.	2003	322.627	51.581	–	0.98	0.22	-5.6
Dias et al.	2002	322.613	51.6	–	0.98	0.22	-18.95
Dambis	1999	322.612	51.6	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	1.6	2.36	2.43	123	0.085	2234	0.52	0.0
Wei et al.	2025	1.90	1.83	–	162	0.500	2234	0.44	–
Almeida et al.	2025	1.59	2.10	–	95	–	3064	–	–
Zhang et al.	2024	–	–	–	–	-0.078⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	4293⁽¹⁾	–	–
Cavallo et al.	2024	1.85	2.30	–	155	0.490	–	–	–
Hunt & Reffert	2023	1.58	2.22	2.43	98	–	–	–	–
Almeida et al.	2023	1.55	2.33	–	55	-0.005	2152⁽¹⁾	0.60	–
Just et al.	2023	–	–	–	116	–	71	–	–
Jaehnig et al.	2021	1.60⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.62	2.48	–	138	–	–	–	0
Dias et al.	2021	1.59	2.10	–	95	0.174	–	–	–
Cantat-Gaudin et al.	2020	1.67	1.81	–	195	–	–	–	–
Cantat-Gaudin & Anders	2020	1.62	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	234	-1.250	–	–	–
Soubiran et al.	2018	1.62	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.62	–	–	–	–	–	–	–
Kharchenko et al.	2016	1.60	2.39	–	116	–	–	–	–
Kharchenko et al.	2013	1.60	2.39	–	116	–	–	–	–
Gozha et al.	2012	1.30	–	–	139	–	–	–	–
Kharchenko et al.	2012	1.60	2.39	–	116	–	–	–	–
van den Bergh	2006	1.30	2.51	–	138	–	–	–	–
Chen et al.	2003	1.30	–	–	130	–	–	–	–
Dias et al.	2002	1.30	2.50	–	139	–	–	–	–
Dambis	1999	0.94	2.73	–	79	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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