VDBH 66

(vdB-Hagen 66; van den Bergh-Hagen 66; vdBergh-Hagen 66; BH 66; MWSC 1667; UKS 2; ESO 166 11)

0.85 UTI

0.81

C_N

1.0

C_dens

0.75

C_C3

0.84

C_lit

1.0

C_dup

N_m (P>50%) 250

Core radius and density 1.1 [pc], 8.8 [pc^-2]

C3 classification AB

C_N 0.81 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.84 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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VDBH 66 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, below 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 mass parameter (see Parameters). It is well-studied in the literature.

Very distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.27 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.27 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1303, e_all=0.0345.

Data

🔍 Search references for VDBH 66 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–	141.318	-54.72	0.116	-4.166	3.638	55.618
Li et al.	2025	141.314	-54.719	0.097	-4.157	3.599	–
Hu & Soubiran	2025	141.332	-54.726	–	–	–	–
Hunt & Reffert	2024	141.317	-54.719	0.123	-4.136	3.61	58.9
Cavallo et al.	2024	141.332	-54.726	0.119	–	–	–
Hunt & Reffert	2023	141.317	-54.719	0.123	-4.136	3.61	58.9
Just et al.	2023	141.332	-54.722	–	–	–	–
Jadhav & Subramaniam	2021	141.314	-54.719	–	–	–	–
Jaehnig et al.	2021	141.319	-54.717	0.127	-4.178	3.608	–
Rain et al.	2021	141.314	-54.719	0.097	-4.157	3.599	–
Cantat-Gaudin et al.	2020	141.314	-54.719	0.097	-4.157	3.599	–
Cantat-Gaudin & Anders	2020	141.314	-54.719	0.097	-4.157	3.599	–
Soubiran et al.	2018	141.314	-54.719	–	–	–	55.2
Bica et al.	2019	141.329	-54.71	–	–	–	–
Cantat-Gaudin et al.	2018	141.314	-54.719	0.097	-4.157	3.599	–
Loktin & Popova	2017	141.33	-54.716	–	-0.82	-0.1	–
Sampedro et al.	2017	141.325	-54.717	–	1.69	3.1	–
Kharchenko et al.	2016	141.332	-54.722	–	–	–	–
Dias et al.	2014	141.325	-54.717	–	-0.82	-0.1	–
Kharchenko et al.	2013	141.337	-54.725	–	-5.56	4.19	–
Bukowiecki et al.	2011	141.308	-54.726	–	–	–	–
Piskunov et al.	2008	141.317	-54.718	–	–	–	–
Ahumada & Lapasset	2007	141.325	-54.717	–	–	–	–
van den Bergh	2006	141.325	-54.717	–	–	–	–
Kharchenko et al.	2005	141.33	-54.72	–	-3.74	5.79	–
Dias et al.	2002	141.325	-54.717	–	-0.82	-0.1	–
Lynga	1987	141.294	-54.788	–	–	–	–
van den Bergh & Hagen	1975	140.9	-54.567	–	–	–	–

💡 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–	6.925	1.38	2.49	732	-0.210	539	–	0
Li et al.	2025	6.85	1.73	–	612	-0.047	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.270⁽⁵⁾	–	–	–
Hunt & Reffert	2024	6.84	1.97	2.49	273	–	3692⁽¹⁾	–	–
Cavallo et al.	2024	4.66	1.78	–	851	-0.210	–	–	–
Hunt & Reffert	2023	6.84	1.97	2.49	274	–	–	–	–
Just et al.	2023	–	–	–	741	–	393	–	–
Jadhav & Subramaniam	2021	6.31	1.38	–	724	–	539	–	0⁽¹⁾
Jaehnig et al.	2021	7.84⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	7.93	1.26	–	794	–	–	–	0
Cantat-Gaudin et al.	2020	6.31	1.38	–	724	–	–	–	–
Kounkel et al.	2020	5.80	1.62	–	537	–	–	–	–
Cantat-Gaudin & Anders	2020	7.93	–	–	–	–	–	–	–
Soubiran et al.	2018	7.93	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	7.93	–	–	–	–	–	–	–
Loktin & Popova	2017	2.26	0.98	–	468	–	–	–	–
Kharchenko et al.	2016	5.66	2.30	–	741	–	–	–	–
Kharchenko et al.	2013	5.66	2.30	–	741	–	–	–	–
Bukowiecki et al.	2011	9.03⁽¹⁾	1.01	–	1259	–	–	–	–
Piskunov et al.	2008	7.00	0.95	–	30	–	–	–	–
Ahumada & Lapasset	2007	–	1.26	–	794	–	–	–	2
van den Bergh	2006	7.00	1.26	–	794	–	–	–	–
Kharchenko et al.	2005	7.00	0.95	–	30	–	–	–	–
Dias et al.	2002	7.00	1.26	–	794	–	–	–	–

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

Visualization

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