VDBH 189

(Lynga 9; MWSC 2389; OCL 966; vdBergh-Hagen 189; ESO 226 02; FSR 1726)

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1.0 UTI
1.0
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
Radius (P>50% members) 3.2 [arcmin]
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique

Overview

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VDBH 189 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Relatively close High extinction Massive Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 245.173 -48.52 0.388 -2.551 -2.441 -49.238
Hu & Soubiran 2025 245.17 -48.519 – – – –
Almeida et al. 2025 245.171 -48.519 – – – –
Hunt & Reffert 2024 245.177 -48.524 0.399 -2.554 -2.442 -36.958
Cavallo et al. 2024 245.17 -48.519 0.396 – – –
Hunt & Reffert 2023 245.177 -48.524 0.399 -2.554 -2.442 -36.958
Just et al. 2023 245.16 -48.516 – – – –
Dias et al. 2021 245.171 -48.519 0.358 -2.564 -2.41 -51.386
Cantat-Gaudin et al. 2020 245.17 -48.523 0.359 -2.559 -2.415 –
SΓ‘nchez et al. 2020 245.171 -48.529 – -2.501 -2.401 –
Cantat-Gaudin & Anders 2020 245.17 -48.523 0.359 -2.559 -2.415 –
Soubiran et al. 2018 245.17 -48.523 – – – -50.3
Bica et al. 2019 245.178 -48.538 – – – –
Cantat-Gaudin et al. 2018 245.17 -48.523 0.359 -2.559 -2.415 –
Kharchenko et al. 2016 245.16 -48.516 – – – –
Dias et al. 2014 245.171 -48.529 – -4.2 -2.54 –
Kharchenko et al. 2013 245.17 -48.517 – -9.94 3.34 –
Dias et al. 2002 245.171 -48.529 – -4.2 -2.54 –

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] Bfr BSS
Hu & Soubiran 2025 – – – – -0.220* – – –
Almeida et al. 2025 2.32 2.98 – 62 – 3338 – –
Hunt & Reffert 2024 – – – – – 6240* – –
Cavallo et al. 2024 1.80 3.45 – 891 -0.220 – – –
Hunt & Reffert 2023 2.33 3.34 2.36 289 – – – –
Just et al. 2023 – – – 661 – 85 – –
Dias et al. 2021 2.32 2.98 – 62 0.519 – – –
Cantat-Gaudin et al. 2020 2.52 2.50 – 631 – – – –
Cantat-Gaudin & Anders 2020 2.57 – – – – – – –
Soubiran et al. 2018 2.57 – – – – – – –
Cantat-Gaudin et al. 2018 2.57 – – – – – – –
Kharchenko et al. 2016 1.70 3.61 – 661 – – – –
Kharchenko et al. 2013 1.70 3.61 – 661 – – – –
Dias et al. 2002 1.70 3.66 – 708 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0656 3.5 245.19 -48.53 0.45 -2.51 -2.38 -46.86 0.0

πŸ’‘ Note: The % column shows the percentage of members that VDBH 189 shares with each listed object.

Visualization

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