VDBH 54

(vdB-Hagen 54; van den Bergh-Hagen 54; BH 54; vdBergh-Hagen 54; MWSC 1575)

0.71 UTI

0.72

C_N

0.6

C_dens

0.75

C_C3

0.74

C_lit

1.0

C_dup

N_m (P>50%) 93

Core radius and density 1.8 [pc], 3.0 [pc^-2]

C3 classification AB

C_N 0.72 Moderately populated
C_dens 0.6 Moderately dense
C_C3 0.75 High quality
C_lit 0.74 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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VDBH 54 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 30 along with HSC_2130, and of multiple system 15 along with HSC_2130 and Gulliver_5.

Palma et al. (2025)
Part of multiple system G15, along with Ruprecht_65 and HSC_2130.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.59 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.59 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2511, e_all=0.2774.

Data

🔍 Search references for VDBH 54 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–	132.39	-44.355	0.428	-4.8	5.327	64.631
Liu et al.	2025	132.41	-44.35	0.43	-4.81	5.32	35.01
Almeida et al.	2025	132.393	-44.354	–	–	–	–
Hunt & Reffert	2024	132.412	-44.353	0.435	-4.809	5.322	35.008
Celli et al.	2024	132.413	-44.353	–	–	–	–
Cavallo et al.	2024	132.386	-44.363	0.435	–	–	–
Hunt & Reffert	2023	132.412	-44.353	0.435	-4.809	5.322	35.008
Just et al.	2023	132.416	-44.364	–	–	–	–
Richer et al.	2021	132.394	-44.363	0.41	-4.794	5.238	–
Dias et al.	2021	132.393	-44.354	0.415	-4.791	5.307	–
Cantat-Gaudin et al.	2020	132.413	-44.353	0.42	-4.759	5.244	–
Cantat-Gaudin & Anders	2020	132.413	-44.353	0.42	-4.759	5.244	–
Cantat-Gaudin et al.	2018	132.413	-44.353	0.42	-4.759	5.244	–
Dias et al.	2018	–	–	–	-5.65	5.58	–
Dib et al.	2018	132.421	-44.367	–	–	–	–
Sampedro et al.	2017	132.421	-44.367	–	–	–	–
Joshi et al.	2016	132.421	-44.367	–	–	–	–
Kharchenko et al.	2016	132.416	-44.364	–	–	–	–
Dias et al.	2014	132.421	-44.367	–	-3.12	5.24	–
Kharchenko et al.	2013	132.421	-44.367	–	-5.94	9.9	–
Bukowiecki et al.	2011	132.45	-44.363	–	–	–	–
Dias et al.	2002	132.421	-44.367	–	-3.12	5.24	–
Lynga	1987	132.435	-44.42	–	–	–	–
van den Bergh & Hagen	1975	132.0	-44.233	–	–	–	–

💡 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–	2.12	2.585	2.52	9	0.452	508	–	–
Liu et al.	2025	4.41	0.99	–	15	–	–	–	–
Almeida et al.	2025	2.12	2.64	–	6	–	352	–	–
Hunt & Reffert	2024	2.16	3.11	2.52	4	–	552⁽¹⁾	–	–
Celli et al.	2024	–	–	–	9	–	508	–	–
Cavallo et al.	2024	2.21	2.72	–	6	0.590	–	–	–
Hunt & Reffert	2023	2.16	3.11	2.52	4	–	–	–	–
Just et al.	2023	–	–	–	32	–	38	–	–
Richer et al.	2021	–	3.05	–	–	–	–	–	–
Dias et al.	2021	2.12	2.64	–	6	0.313	–	–	–
Cantat-Gaudin et al.	2020	2.25	2.53	–	9	–	–	–	–
Kounkel et al.	2020	1.97	2.89	–	11	–	–	–	–
Cantat-Gaudin & Anders	2020	2.23	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.23	–	–	–	–	–	–	–
Dib et al.	2018	1.24	–	–	32	–	–	–	–
Joshi et al.	2016	1.24	2.30	–	32	–	–	–	–
Kharchenko et al.	2016	1.24	2.30	–	32	–	–	–	–
Kharchenko et al.	2013	1.24	2.30	–	32	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	709	–	–
Bukowiecki et al.	2011	1.11⁽¹⁾	1.83	–	7	–	–	–	–
Dias et al.	2002	1.10	1.89	–	7	–	–	–	–

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

Visualization

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