Collinder 166

(NGC 2482; MWSC 1382; OCL 653; ESO 494 03; FoF 2233)

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) 157

Stellar density (N₅₀/rad) 11.6 [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 166 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a 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 Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 166 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–	118.788	-24.273	0.728	-4.67	2.258	37.633
Li et al.	2025	118.787	-24.263	0.72	-4.722	2.189	–
Hu & Soubiran	2025	118.802	-24.265	–	–	–	–
Almeida et al.	2025	118.795	-24.263	–	–	–	–
Hunt & Reffert	2024	118.81	-24.28	0.726	-4.667	2.26	35.948
Cavallo et al.	2024	118.802	-24.265	0.732	–	–	–
Hunt & Reffert	2023	118.81	-24.28	0.726	-4.667	2.26	35.948
Almeida et al.	2023	118.795	-24.26	–	–	–	–
Cordoni et al.	2023	118.795	-24.263	0.727	-4.708	2.209	–
Just et al.	2023	118.787	-24.273	–	–	–	–
Tarricq et al.	2022	118.739	-24.293	0.724	-4.658	2.253	–
Jaehnig et al.	2021	118.769	-24.262	0.751	-4.685	2.222	–
Rain et al.	2021	118.787	-24.263	0.72	-4.722	2.189	–
Dias et al.	2021	118.795	-24.263	0.727	-4.708	2.209	39.007
Cantat-Gaudin et al.	2020	118.787	-24.263	0.72	-4.722	2.189	–
Cantat-Gaudin & Anders	2020	118.787	-24.263	0.72	-4.722	2.189	–
Liu & Pang	2019	118.791	-24.266	0.736	-4.682	2.222	–
Bossini et al.	2019	118.787	-24.263	–	–	–	–
Soubiran et al.	2018	118.787	-24.263	–	–	–	39.13
Bica et al.	2019	118.804	-24.273	–	–	–	–
Cantat-Gaudin et al.	2018	118.787	-24.263	0.72	-4.722	2.189	–
Loktin & Popova	2017	118.8	-24.258	–	-4.539	3.675	38.2
Kharchenko et al.	2016	118.787	-24.273	–	–	–	–
Dias et al.	2014	118.8	-24.258	–	-3.29	3.29	–
Kharchenko et al.	2013	118.792	-24.275	–	-5.1	1.8	38.2
Gozha et al.	2012	118.8	-24.258	–	–	–	–
Piskunov et al.	2008	118.793	-24.256	–	–	–	–
Piskunov et al.	2007	118.793	-24.256	–	–	–	–
van den Bergh	2006	118.8	-24.267	–	–	–	–
Kharchenko et al.	2005	118.8	-24.26	–	-5.66	0.75	–
Kharchenko et al.	2003	118.8	-24.28	–	-5.7	0.45	–
Chen et al.	2003	118.798	-24.264	–	–	–	–
Dias et al.	2002	118.8	-24.258	–	-3.29	3.29	38.17

💡 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–	1.33	0.28	0.34	398	0.031	392	0.54	0.0
Li et al.	2025	1.36	0.10	–	517	0.239	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.150⁽⁵⁾	–	–	–
Almeida et al.	2025	1.31	0.30	–	470	–	317	–	–
Hunt & Reffert	2024	–	–	–	–	–	514⁽¹⁾	–	–
Cavallo et al.	2024	1.29	0.13	–	575	0.220	–	–	–
Hunt & Reffert	2023	1.26	0.10	0.34	541	–	–	–	–
Almeida et al.	2023	1.21	0.10	–	671	-0.102	313⁽¹⁾	0.51	–
Cordoni et al.	2023	1.31	0.30	–	470	0.031	772	0.57	0.00
Just et al.	2023	–	–	–	320	–	149	–	–
Tarricq et al.	2022	1.25	–	–	363	–	–	–	–
Jaehnig et al.	2021	1.33⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.33	0.34	–	355	–	–	–	0
Dias et al.	2021	1.31	0.30	–	470	0.031	–	–	–
Cantat-Gaudin et al.	2020	1.28	0.32	–	347	–	–	–	–
Cantat-Gaudin & Anders	2020	1.33	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	316	0.250	–	–	–
Bossini et al.	2019	1.30	0.36	–	355	-0.070	–	–	–
Soubiran et al.	2018	1.33	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.33	–	–	–	–	–	–	–
Loktin & Popova	2017	1.38	0.27	–	409	–	–	–	–
Kharchenko et al.	2016	1.34	0.28	–	320	–	–	–	–
Kharchenko et al.	2013	1.34	0.28	–	320	-0.081	–	–	–
Gozha et al.	2012	1.34	–	–	402	0.120	468	–	–
Piskunov et al.	2008	1.34	0.28	–	302	–	617⁽¹⁾	–	–
Piskunov et al.	2007	1.34	0.28	–	302	–	154	–	–
van den Bergh	2006	1.34	0.28	–	398	–	–	–	–
Kharchenko et al.	2005	1.34	0.28	–	302	–	–	–	–
Kharchenko et al.	2003	1.35	0.28	–	–	–	–	–	–
Chen et al.	2003	1.34	0.29	–	400	0.120⁽¹⁾	–	–	–
Dias et al.	2002	1.19	0.29	–	447	-0.070	–	–	–

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

Visualization

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