Collinder 186

(VDBH 29; NGC 2588; MWSC 1480; OCL 715; vdBergh-Hagen 29; ESO 370 10)

0.90 UTI

0.75

C_N

1.0

C_dens

1.0

C_C3

0.87

C_lit

1.0

C_dup

N₅₀ (P>50% members) 110

Stellar density (N₅₀/rad) 16.2 [N/pc²]

C3 classification AA

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.87 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 186 is a rich, very dense object of very high C3 quality. Its parallax locates it at a large 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 parameter (see Parameters). It is well-studied in the literature.

Distant Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 186 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–	125.802	-32.973	0.19	-1.88	2.569	43.731
Li et al.	2025	125.797	-32.972	0.199	-1.884	2.521	–
Hu & Soubiran	2025	125.805	-32.968	–	–	–	–
Almeida et al.	2025	125.799	-32.968	–	–	–	–
Hunt & Reffert	2024	125.798	-32.973	0.186	-1.891	2.577	43.819
Cavallo et al.	2024	125.805	-32.968	0.19	–	–	–
Hunt & Reffert	2023	125.798	-32.973	0.186	-1.891	2.577	43.819
Just et al.	2023	125.799	-32.967	–	–	–	–
Dias et al.	2021	125.799	-32.968	0.193	-1.897	2.51	–
Cantat-Gaudin et al.	2020	125.797	-32.972	0.199	-1.884	2.521	–
Cantat-Gaudin & Anders	2020	125.797	-32.972	0.199	-1.884	2.521	–
Bica et al.	2019	125.793	-32.975	–	–	–	–
Cantat-Gaudin et al.	2018	125.797	-32.972	0.199	-1.884	2.521	–
Kharchenko et al.	2016	125.799	-32.967	–	–	–	–
Dias et al.	2014	125.792	-32.975	–	-2.62	0.63	–
Kharchenko et al.	2013	125.805	-32.97	–	0.04	3.17	–
van den Bergh	2006	125.8	-32.983	–	–	–	–
Dias et al.	2002	125.792	-32.975	–	0.04	3.17	–

💡 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–	4.39	0.93	0.78	517	-0.191	310	–	–
Li et al.	2025	4.74	0.94	–	517	0.170	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.270⁽⁵⁾	–	–	–
Almeida et al.	2025	4.30	1.24	–	398	–	310	–	–
Hunt & Reffert	2024	–	–	–	–	–	759⁽¹⁾	–	–
Cavallo et al.	2024	3.58	1.29	–	562	-0.240	–	–	–
Hunt & Reffert	2023	4.60	0.69	0.78	491	–	–	–	–
Just et al.	2023	–	–	–	794	–	287	–	–
Dias et al.	2021	4.30	1.24	–	398	-0.142	–	–	–
Cantat-Gaudin et al.	2020	4.68	0.80	–	550	–	–	–	–
Cantat-Gaudin & Anders	2020	4.39	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.39	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.42	0.78	–	794	–	–	–	–
Kharchenko et al.	2013	2.42	0.78	–	794	–	–	–	–
van den Bergh	2006	5.25	0.93	–	398	–	–	–	–
Dias et al.	2002	4.95	0.93	–	447	–	–	–	–

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

Visualization

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