Collinder 212

(NGC 3033; MWSC 1715; OCL 796; ESO 167 06; FoF 2090)

0.90 UTI

0.77

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 161

Stellar density (N₅₀/rad) 12.0 [N/pc²]

C3 classification AB

C_N 0.77 Rich
C_dens 1.0 Very dense
C_C3 0.75 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 212 is a rich, very dense object of 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 near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is very well-studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 212 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–	147.145	-56.413	0.547	-7.578	4.256	27.946
Li et al.	2025	147.145	-56.415	0.532	-7.554	4.254	–
Hu & Soubiran	2025	147.143	-56.403	–	–	–	–
Almeida et al.	2025	147.16	-56.413	–	–	–	–
Hunt & Reffert	2024	147.147	-56.412	0.538	-7.564	4.265	29.25
Cavallo et al.	2024	147.142	-56.403	0.543	–	–	–
Hunt & Reffert	2023	147.147	-56.412	0.538	-7.564	4.265	29.25
Almeida et al.	2023	147.159	-56.407	–	–	–	–
Just et al.	2023	147.122	-56.422	–	–	–	–
Jaehnig et al.	2021	147.131	-56.411	0.561	-7.609	4.254	–
Rain et al.	2021	147.145	-56.415	0.532	-7.554	4.254	–
Dias et al.	2021	147.16	-56.413	0.535	-7.542	4.273	26.895
Cantat-Gaudin et al.	2020	147.145	-56.415	0.532	-7.554	4.254	–
Cantat-Gaudin & Anders	2020	147.145	-56.415	0.532	-7.554	4.254	–
Liu & Pang	2019	147.156	-56.375	0.528	-7.535	4.272	–
Soubiran et al.	2018	147.145	-56.415	–	–	–	27.56
Bica et al.	2019	147.134	-56.411	–	–	–	–
Cantat-Gaudin et al.	2018	147.145	-56.415	0.532	-7.554	4.254	–
Loktin & Popova	2017	147.15	-56.421	–	-1.61	0.51	26.7
Kharchenko et al.	2016	147.122	-56.422	–	–	–	–
Dias et al.	2014	147.154	-56.422	–	-2.15	0.93	–
Kharchenko et al.	2013	147.127	-56.425	–	-3.19	5.25	26.7
Gozha et al.	2012	147.154	-56.422	–	–	–	–
Piskunov et al.	2008	147.148	-56.417	–	–	–	–
Kharchenko et al.	2007	147.15	-56.42	–	0.14	–	–
van den Bergh	2006	147.125	-56.425	–	–	–	–
Kharchenko et al.	2005	147.15	-56.42	–	-3.55	4.13	–
Kharchenko et al.	2003	147.18	-56.46	–	-3.44	4.66	–
Dias et al.	2002	147.154	-56.422	–	-1.61	0.51	27.15

💡 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	1.02	0.57	417	0.028	370	0.6	0.0
Li et al.	2025	1.60	0.80	–	858	-0.042	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.210⁽⁵⁾	–	–	–
Almeida et al.	2025	1.68	1.13	–	611	–	370	–	–
Hunt & Reffert	2024	–	–	–	–	–	670⁽¹⁾	–	–
Cavallo et al.	2024	1.58	0.95	–	794	0.090	–	–	–
Hunt & Reffert	2023	1.71	0.84	0.57	421	–	–	–	–
Almeida et al.	2023	1.69	1.03	–	693	0.040	441⁽¹⁾	0.60	–
Just et al.	2023	–	–	–	417	–	33	–	–
Jaehnig et al.	2021	1.78⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.78	0.99	–	69	–	–	–	0
Dias et al.	2021	1.68	1.13	–	611	0.015	–	–	–
Cantat-Gaudin et al.	2020	1.79	0.76	–	676	–	–	–	–
Cantat-Gaudin & Anders	2020	1.78	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	576	0.250	–	–	–
Soubiran et al.	2018	1.78	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.78	–	–	–	–	–	–	–
Loktin & Popova	2017	0.92	1.01	–	70	–	–	–	–
Kharchenko et al.	2016	1.02	1.03	–	417	–	–	–	–
Kharchenko et al.	2013	1.02	1.03	–	417	–	–	–	–
Gozha et al.	2012	0.92	–	–	70	–	105	–	–
Piskunov et al.	2008	0.92	1.02	–	417	–	–	–	–
van den Bergh	2006	0.92	1.02	–	69	–	–	–	–
Kharchenko et al.	2005	0.92	1.02	–	417	–	–	–	–
Kharchenko et al.	2003	0.93	1.02	–	–	–	–	–	–
Dias et al.	2002	0.92	1.01	–	70	–	–	–	–

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

Visualization

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