VDBH 166

(Hogg 18; MWSC 2257; OCL 933; vdBergh-Hagen 166; ESO 223 01)

0.84 UTI

0.45

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 45

Stellar density (N₅₀/rad) 6.8 [N/pc²]

C3 classification AB

C_N 0.45 Poorly populated
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

ℹ️

VDBH 166 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young 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 Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for VDBH 166 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	222.695	-52.271	0.552	-1.792	-2.267	-5.842
Li et al.	2025	222.716	-52.271	0.564	-1.808	-2.317	–
Almeida et al.	2025	222.694	-52.285	–	–	–	–
Hunt & Reffert	2024	222.688	-52.273	0.546	-1.836	-2.293	5.295
Cavallo et al.	2024	222.713	-52.267	0.552	–	–	–
Hunt & Reffert	2023	222.688	-52.273	0.546	-1.836	-2.293	5.295
Just et al.	2023	222.664	-52.268	–	–	–	–
Jaehnig et al.	2021	222.705	-52.27	0.597	-1.826	-2.274	–
Rain et al.	2021	222.716	-52.271	0.564	-1.808	-2.317	–
Dias et al.	2021	222.694	-52.285	0.562	-1.794	-2.279	–
Cantat-Gaudin et al.	2020	222.716	-52.271	0.564	-1.808	-2.317	–
Cantat-Gaudin & Anders	2020	222.716	-52.271	0.564	-1.808	-2.317	–
Bica et al.	2019	222.676	-52.274	–	–	–	–
Cantat-Gaudin et al.	2018	222.716	-52.271	0.564	-1.808	-2.317	–
Loktin & Popova	2017	222.675	-52.268	–	-1.712	-0.871	–
Kharchenko et al.	2016	222.664	-52.268	–	–	–	–
Dias et al.	2014	222.679	-52.267	–	-3.67	-2.35	–
Kharchenko et al.	2013	222.675	-52.27	–	-3.11	-3.48	–
Piskunov et al.	2008	222.669	-52.266	–	–	–	–
van den Bergh	2006	222.675	-52.267	–	–	–	–
Kharchenko et al.	2005	222.67	-52.27	–	-1.11	-2.55	–
Kharchenko et al.	2003	222.7	-52.26	–	-0.82	-4.16	–
Dias et al.	2002	222.679	-52.267	–	-1.36	-3.34	–
Dambis	1999	222.675	-52.267	–	–	–	–

💡 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–	1.61	1.57	1.04	58	-0.018	113	–	0.0
Li et al.	2025	1.66	1.65	–	39	-0.172	–	–	–
Almeida et al.	2025	1.62	1.78	–	31	–	113	–	–
Hunt & Reffert	2024	–	–	–	–	–	151⁽¹⁾	–	–
Cavallo et al.	2024	1.79	1.51	–	66	0.330	–	–	–
Hunt & Reffert	2023	1.70	1.59	1.04	80	–	–	–	–
Just et al.	2023	–	–	–	89	–	110	–	–
Jaehnig et al.	2021	1.61⁽¹⁾	–	–	–	–	–	–	–
Rain et al.	2021	1.69	1.55	–	56	–	–	–	0
Dias et al.	2021	1.62	1.78	–	31	-0.018	–	–	–
Cantat-Gaudin et al.	2020	1.75	1.21	–	263	–	–	–	–
Cantat-Gaudin & Anders	2020	1.69	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.69	–	–	–	–	–	–	–
Loktin & Popova	2017	1.57	1.55	–	53	–	–	–	–
Kharchenko et al.	2016	1.53	1.58	–	89	–	–	–	–
Kharchenko et al.	2013	1.53	1.58	–	89	–	–	–	–
Piskunov et al.	2008	1.53	1.58	–	38	–	–	–	–
van den Bergh	2006	1.53	1.55	–	58	–	–	–	–
Kharchenko et al.	2005	1.53	1.58	–	38	–	–	–	–
Kharchenko et al.	2003	1.53	1.55	–	–	–	–	–	–
Dias et al.	2002	1.53	1.56	–	57	–	–	–	–
Dambis	1999	1.10	1.53	–	79	–	–	–	–

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

Visualization

ℹ️

1 2 3