VDBH 118

(van den Bergh-Hagen 118; BH 118; vdBergh-Hagen 118; MWSC 1939; ESO 129 20)

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0.81 UTI
0.8
CN
1.0
Cdens
0.75
CC3
0.74
Clit
1.0
Cdup
Nm (P>50%) 231
Core radius and density 1.9 [pc], 6.9 [pc-2]
C3 classification AB
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.74 Moderately 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 118 is a rich, very dense object of high C3 quality. Its parallax locates it at a very large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is moderately studied in the literature.

Note: This object contains blue stragglers according to at least one source.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.76 (50th percentile), false positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.76 (50th percentile), false positive? (human-assigned).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2696, e_all=0.1917.

Data
πŸ” Search references for VDBH 118 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 170.763 -58.548 0.098 -4.441 1.484 3.495
Li et al. 2025 170.765 -58.549 0.065 -4.406 1.45 –
Hu & Soubiran 2025 170.741 -58.554 – – – –
Hunt & Reffert 2024 170.757 -58.546 0.106 -4.462 1.499 23.298
Cavallo et al. 2024 170.741 -58.554 0.104 – – –
Hunt & Reffert 2023 170.757 -58.546 0.106 -4.462 1.499 23.298
Just et al. 2023 170.618 -58.526 – – – –
Jadhav & Subramaniam 2021 170.765 -58.549 – – – –
Cantat-Gaudin et al. 2020 170.765 -58.549 0.065 -4.406 1.45 –
SΓ‘nchez et al. 2020 170.762 -58.55 – -4.322 1.25 –
Cantat-Gaudin & Anders 2020 170.765 -58.549 0.065 -4.406 1.45 –
Bica et al. 2019 170.754 -58.553 – – – –
Cantat-Gaudin et al. 2018 170.765 -58.549 0.065 -4.406 1.45 –
Dias et al. 2018 – – – -7.78 1.39 –
Dib et al. 2018 170.625 -58.53 – – – –
Sampedro et al. 2017 170.762 -58.55 – -5.45 -4.17 –
Joshi et al. 2016 170.625 -58.53 – – – –
Kharchenko et al. 2016 170.618 -58.526 – – – –
Dias et al. 2014 170.762 -58.55 – -5.47 -3.06 –
Kharchenko et al. 2013 170.625 -58.53 – -8.23 1.23 –
Bukowiecki et al. 2011 170.879 -58.52 – – – –
Dias et al. 2002 170.762 -58.55 – -7.56 3.45 –
Lynga 1987 170.718 -58.546 – – – –
van den Bergh & Hagen 1975 170.15 -58.267 – – – –

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– 7.14 1.07 1.32 1160 -0.251 1268 – 1
Li et al. 2025 8.32 1.57 – 2122 -0.251 – – –
Hu & Soubiran 2025 – – – – -0.190(5) – – –
Hunt & Reffert 2024 8.70 1.76 1.32 1211 – 2043(1) – –
Cavallo et al. 2024 7.14 2.29 – 1905 -0.810 – – –
Hunt & Reffert 2023 8.70 1.76 1.32 1211 – – – –
Just et al. 2023 – – – 1109 – 33 – –
Jadhav & Subramaniam 2021 8.79 1.07 – 1905 – 3466 – 1(1)
Cantat-Gaudin et al. 2020 8.79 1.07 – 1905 – – – –
Kounkel et al. 2020 6.40 1.52 – 1288 – – – –
Cantat-Gaudin & Anders 2020 10.65 – – – – – – –
Cantat-Gaudin et al. 2018 10.65 – – – – – – –
Dib et al. 2018 1.22 – – 1109 – – – –
Joshi et al. 2016 1.22 0.66 – 1109 – – – –
Kharchenko et al. 2016 1.22 0.66 – 1109 – – – –
Kharchenko et al. 2013 1.22 0.66 – 1109 – – – –
Bukowiecki et al. 2012 – – – – – 493 – –
Bukowiecki et al. 2011 1.50(1) 0.82 – 398 – – – –
Dias et al. 2002 1.49 0.85 – 398 – – – –

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

Visualization
ℹ️
VDBH 118 UCC
VDBH 118 HUNT23
VDBH 118 CANTAT20
Galactocentric position diagram