VDBH 211

(van den Bergh-Hagen 211; BH 211; vdBergh-Hagen 211; MWSC 2518; ESO 332 16)

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0.88 UTI
0.79
CN
1.0
Cdens
0.75
CC3
0.94
Clit
1.0
Cdup
Nm (P>50%) 209
Core radius and density 1.0 [pc], 11 [pc-2]
C3 classification AB
  • CN 0.79 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.94 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 MOCAMOCA πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
VDBH 211 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near 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 age, metallicity, and mass parameters (see Parameters). It is very well-studied in the literature.

Palma et al. (2025)
Classified as optical pair P272, along with BH_202.

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: 0.79 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.79 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1725, e_all=0.1007.

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

Data
πŸ” Search references for VDBH 211 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 255.522 -41.121 0.553 -0.695 -1.947 -48.342
Otto et al. 2026 255.527 -41.112 – -0.67 -1.94 -49.0
Hu & Soubiran 2025 255.518 -41.124 – – – –
Almeida et al. 2025 255.541 -41.124 – – – –
Hunt & Reffert 2024 255.527 -41.112 0.572 -0.71 -1.923 -53.127
Cavallo et al. 2024 255.518 -41.124 0.57 – – –
Hunt & Reffert 2023 255.527 -41.112 0.572 -0.71 -1.923 -53.127
Just et al. 2023 255.535 -41.11 – – – –
Jadhav & Subramaniam 2021 255.535 -41.113 – – – –
Netopil et al. 2022 255.535 -41.113 – – – -46.9
Dias et al. 2021 255.541 -41.124 0.51 -0.669 -1.951 -48.896
Spina et al. 2021 255.53 -41.12 0.507 -0.689 -1.939 –
Cantat-Gaudin et al. 2020 255.535 -41.113 0.524 -0.671 -1.943 –
SΓ‘nchez et al. 2020 255.546 -41.1 – -0.726 -1.875 –
Donor et al. 2020 255.546 -41.1 – -0.68 -2.04 -49.0
Cantat-Gaudin & Anders 2020 255.535 -41.113 0.524 -0.671 -1.943 –
Soubiran et al. 2018 255.535 -41.113 – – – -48.83
Bica et al. 2019 255.549 -41.109 – – – –
Cantat-Gaudin et al. 2018 255.535 -41.113 0.524 -0.671 -1.943 –
Dib et al. 2018 255.546 -41.11 – – – –
Sampedro et al. 2017 255.546 -41.1 – -2.87 -2.59 –
Kharchenko et al. 2016 255.535 -41.11 – – – –
Dias et al. 2014 255.546 -41.1 – -2.32 -2.67 –
Kharchenko et al. 2013 255.546 -41.11 – -1.48 -2.29 –
Morales et al. 2013 255.546 -41.1 – – – –
Bukowiecki et al. 2011 255.537 -41.083 – – – –
Dias et al. 2002 255.546 -41.1 – -3.45 -3.13 –
Lynga 1987 255.553 -41.073 – – – –
van den Bergh & Hagen 1975 254.675 -41.0 – – – –

πŸ’‘ 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] Bfrac BSS
UCC 99999– 1.81 2.51 2.04 427 0.205 558 – 0
Otto et al. 2026 – – – 427 0.200(15) – – –
Hu & Soubiran 2025 – – – – -0.220(5) – – –
Almeida et al. 2025 1.64 2.39 – 668 – 558 – –
Hunt & Reffert 2024 1.65 2.63 2.04 171 – 1078(1) – –
Cavallo et al. 2024 1.39 2.85 – 676 -0.250 – – –
Hunt & Reffert 2023 1.65 2.63 2.04 171 – – – –
Just et al. 2023 – – – 331 – 126 – –
Spina et al. 2022 – – – – 0.210 – – –
Jadhav & Subramaniam 2021 1.91 2.18 – 427 – 612 – 0(1)
Netopil et al. 2022 1.90(1) – – 427 0.210(1) – – –
Dias et al. 2021 1.64 2.39 – 668 0.124 – – –
Spina et al. 2021 2.01 – – 427 0.214(20) – – –
Cantat-Gaudin et al. 2020 1.91 2.18 – 427 – – – –
Kounkel et al. 2020 2.00 3.62 – 22 – – – –
Donor et al. 2020 – – – – 0.210 – – –
Cantat-Gaudin & Anders 2020 1.81 – – – – – – –
Soubiran et al. 2018 1.81 – – – – – – –
Cantat-Gaudin et al. 2018 1.81 – – – – – – –
Dib et al. 2018 1.82 – – 331 – – – –
Kharchenko et al. 2016 1.82 3.38 – 331 – – – –
Kharchenko et al. 2013 1.82 3.38 – 331 – – – –
Morales et al. 2013 1.38 – – 1585 – – – –
Bukowiecki et al. 2012 – – – – – 176 – –
Bukowiecki et al. 2011 1.39(1) 1.48 – 1585 – – – –
Dias et al. 2002 1.44 1.92 – 1000 – – – –

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

Visualization
ℹ️
VDBH 211 UCC
VDBH 211 HUNT23
VDBH 211 CANTAT20
Galactocentric position diagram