VDBH 222

(BH 222; vdBergh-Hagen 222; MWSC 2564; ESO 333 04)

0.82 UTI

0.78

C_N

1.0

C_dens

0.75

C_C3

0.78

C_lit

1.0

C_dup

N₅₀ (P>50% members) 188

Stellar density (N₅₀/rad) 16.8 [N/pc²]

C3 classification AB

C_N 0.78 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.78 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 222 is a rich, very dense object of high C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by very high extinction. It is catalogued as an extremely massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

Very distant Very high extinction Extremely massive Near-solar metallicity Young

Palma et al. (2025)
Part of multiple system G38, along with CWNU_1303, PHOC_18, HSC_2889 and CWNU_2342.

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for VDBH 222 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–	259.695	-38.287	0.139	-1.919	-3.167	-113.0
Hunt & Reffert	2024	259.645	-38.425	0.426	-0.223	-1.059	-42.259
Cavallo et al.	2024	259.657	-38.433	0.428	–	–	–
Hunt & Reffert	2023	259.645	-38.425	0.426	-0.223	-1.059	-42.259
Just et al.	2023	259.678	-38.295	–	–	–	–
Cantat-Gaudin et al.	2020	259.694	-38.289	0.114	-2.091	-3.192	–
Cantat-Gaudin & Anders	2020	259.694	-38.289	0.114	-2.091	-3.192	–
Soubiran et al.	2018	259.694	-38.289	–	–	–	-119.29
Bica et al.	2019	259.689	-38.288	–	–	–	–
Cantat-Gaudin et al.	2018	259.694	-38.289	0.114	-2.091	-3.192	–
Kharchenko et al.	2016	259.678	-38.295	–	–	–	–
Dias et al.	2014	259.696	-38.283	–	-1.44	-3.27	–
Kharchenko et al.	2013	259.687	-38.295	–	-1.31	-2.92	–
Morales et al.	2013	259.695	-38.285	–	–	–	–
van den Bergh	2006	259.7	-38.283	–	–	–	–
Dias et al.	2002	259.696	-38.283	–	-2.59	-4.05	–

💡 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–	6.49	5.16	2.31	60	-0.480	359278	–	–
Hunt & Reffert	2024	–	–	–	–	–	762⁽¹⁾	–	–
Cavallo et al.	2024	1.57	3.96	–	10	-0.480	–	–	–
Hunt & Reffert	2023	2.17	3.85	2.31	14	–	–	–	–
Just et al.	2023	–	–	–	79	–	717794	–	–
Cantat-Gaudin & Anders	2020	6.98	–	–	–	–	–	–	–
Soubiran et al.	2018	6.98	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	6.98	–	–	–	–	–	–	–
Kharchenko et al.	2016	7.81	5.16	–	79	–	–	–	–
Kharchenko et al.	2013	7.81	5.16	–	79	–	–	–	–
Morales et al.	2013	6.00	–	–	60	–	–	–	–
van den Bergh	2006	6.00	5.74	–	60	–	–	–	–
Dias et al.	2002	6.00	5.74	–	60	–	–	–	–

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

Visualization

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