Collinder 258

(Collinder 257; VDBH 133; vdB-Hagen 133; Harvard 5; Har5; OCL 880; vdBergh-Hagen 133; ESO 131 05; HD 108353; MWSC 2033; MWSC 2027; FoF 2240)

0.90 UTI

0.76

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 119

Stellar density (N₅₀/rad) 20.5 [N/pc²]

C3 classification AB

C_N 0.76 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 258 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 parameter (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. Gold sample.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Collinder 258 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–	186.807	-60.776	0.797	-7.04	-0.256	-28.922
Li et al.	2025	186.798	-60.767	0.764	-7.051	-0.288	–
Almeida et al.	2025	186.77	-60.76	–	–	–	–
Hunt & Reffert	2024	186.789	-60.769	0.795	-7.02	-0.249	-30.848
Cavallo et al.	2024	186.786	-60.771	0.8	–	–	–
Hunt & Reffert	2023	186.789	-60.769	0.795	-7.02	-0.249	-30.848
Almeida et al.	2023	186.735	-60.761	–	–	–	–
Cordoni et al.	2023	186.77	-60.76	0.765	-7.065	-0.263	–
He et al.	2022	186.766	-60.769	0.801	-7.026	-0.254	–
Tarricq et al.	2022	186.82	-60.767	0.797	-7.031	-0.263	–
Jaehnig et al.	2021	186.805	-60.776	0.798	-7.031	-0.287	–
Rain et al.	2021	186.817	-60.77	0.764	-7.027	-0.332	–
Dias et al.	2021	186.77	-60.76	0.765	-7.065	-0.263	–
Cantat-Gaudin et al.	2020	186.798	-60.767	0.764	-7.051	-0.288	–
Cantat-Gaudin & Anders	2020	186.798	-60.767	0.764	-7.051	-0.288	–
Liu & Pang	2019	186.759	-60.767	0.759	-7.017	-0.274	–
Bossini et al.	2019	186.808	-60.769	–	–	–	–
Soubiran et al.	2018	186.798	-60.767	–	–	–	-28.0
Bica et al.	2019	186.809	-60.773	–	–	–	–
Cantat-Gaudin et al.	2018	186.798	-60.767	0.764	-7.051	-0.288	–
Loktin & Popova	2017	186.81	-60.779	–	-13.683	-7.13	14.9
Dias et al.	2014	186.192	-60.887	–	-4.35	-1.17	–
Gozha et al.	2012	186.817	-60.779	–	–	–	–
Piskunov et al.	2008	186.79	-60.762	–	–	–	–
van den Bergh	2006	186.817	-60.78	–	–	–	–
Kharchenko et al.	2005	186.79	-60.77	–	-7.81	-0.73	–
Kharchenko et al.	2003	186.79	-60.77	–	-7.29	-0.55	–
Dias et al.	2002	186.817	-60.779	–	-2.94	-1.94	14.9
Dambis	1999	186.817	-60.778	–	–	–	–

💡 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–	1.2	0.565	0.46	110	0.149	405	0.59	0.0
Li et al.	2025	1.19	0.60	–	192	0.149	–	–	–
Almeida et al.	2025	1.19	0.75	–	139	–	402	–	–
Hunt & Reffert	2024	–	–	–	–	–	471⁽¹⁾	–	–
Cavallo et al.	2024	1.44	0.82	–	138	0.470	–	–	–
Hunt & Reffert	2023	1.18	0.62	0.46	160	–	–	–	–
Almeida et al.	2023	1.21	0.79	–	147	-0.039	405⁽¹⁾	0.53	–
Cordoni et al.	2023	1.19	0.75	–	139	0.150	1032	0.65	0.00
He et al.	2022	–	0.85	–	112	–	–	–	–
Tarricq et al.	2022	1.23	–	–	81	–	–	–	–
Jaehnig et al.	2021	1.25⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.26	0.50	–	107	–	–	–	0
Dias et al.	2021	1.19	0.75	–	139	0.150	–	–	–
Cantat-Gaudin et al.	2020	1.28	0.53	–	98	–	–	–	–
Cantat-Gaudin & Anders	2020	1.26	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	93	0.250	–	–	–
Bossini et al.	2019	1.25	0.67	–	67	-0.045	–	–	–
Soubiran et al.	2018	1.26	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.26	–	–	–	–	–	–	–
Loktin & Popova	2017	1.22	0.50	–	108	–	–	–	–
Gozha et al.	2012	1.18	–	–	108	-0.070	229	–	–
Piskunov et al.	2008	1.20	0.50	–	112	–	–	–	–
van den Bergh	2006	1.18	0.50	–	107	–	–	–	–
Kharchenko et al.	2005	1.20	0.50	–	112	–	–	–	–
Kharchenko et al.	2003	1.18	0.50	–	–	–	–	–	–
Dias et al.	2002	1.18	0.50	–	108	0.070	–	–	–
Dambis	1999	0.86	0.52	–	32	–	–	–	–

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

Visualization

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