VDBH 90

(vdB-Hagen 90; van den Bergh-Hagen 90; BH 90; vdBergh-Hagen 90; MWSC 1778; FoF 124)

Click to load Aladin Lite
0.87 UTI
0.8
CN
1.0
Cdens
1.0
CC3
0.77
Clit
1.0
Cdup
Nm (P>50%) 220
Core radius and density 0.8 [pc], 21 [pc-2]
C3 classification AA
  • CN 0.8 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.77 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 90 is a rich, very dense object of very 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, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is well-studied in the literature.

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

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.0505, e_all=0.0852.

Data
πŸ” Search references for VDBH 90 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC 99999– 153.062 -58.072 0.375 -5.405 2.327 25.531
Almeida et al. 2025 153.07 -58.07 – – – –
Hunt & Reffert 2024 153.052 -58.075 0.374 -5.409 2.35 25.524
Cavallo et al. 2024 153.081 -58.067 0.375 – – –
Hunt & Reffert 2023 153.052 -58.075 0.374 -5.409 2.35 25.524
Almeida et al. 2023 153.07 -58.072 – – – –
Just et al. 2023 153.04 -58.056 – – – –
Dias et al. 2021 153.07 -58.07 0.352 -5.386 2.309 –
Spina et al. 2021 153.061 -58.07 0.362 -5.4 2.313 –
Cantat-Gaudin et al. 2020 153.064 -58.069 0.369 -5.385 2.295 –
SΓ‘nchez et al. 2020 153.042 -58.067 – -5.388 2.344 –
Cantat-Gaudin & Anders 2020 153.064 -58.069 0.369 -5.385 2.295 –
Liu & Pang 2019 153.096 -58.068 0.367 -5.456 2.473 –
Cantat-Gaudin et al. 2018 153.064 -58.069 0.369 -5.385 2.295 –
Dib et al. 2018 153.045 -58.06 – – – –
Sampedro et al. 2017 153.042 -58.067 – -0.61 3.32 –
Kharchenko et al. 2016 153.04 -58.056 – – – –
Dias et al. 2014 153.042 -58.067 – -0.22 2.86 –
Kharchenko et al. 2013 153.045 -58.06 – -1.69 3.14 –
Bukowiecki et al. 2011 153.046 -58.079 – – – –
van den Bergh 2006 152.975 -58.083 – – – –
Kharchenko et al. 2003 153.06 -58.06 – -1.97 6.03 –
Dias et al. 2002 153.042 -58.067 – -0.22 2.86 –
Lynga 1987 152.988 -58.077 – – – –
van den Bergh & Hagen 1975 152.55 -57.833 – – – –

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– 2.43 1.78 2.39 126 -0.003 662 0.67 –
Almeida et al. 2025 2.29 1.78 – 205 – 662 – –
Hunt & Reffert 2024 2.43 1.97 2.39 70 – 1035(1) – –
Cavallo et al. 2024 2.19 1.85 – 229 0.090 – – –
Hunt & Reffert 2023 2.43 1.97 2.39 70 – – – –
Almeida et al. 2023 2.38 1.98 – 50 0.010 594(1) 0.67 –
Just et al. 2023 – – – 292 – 107 – –
Dias et al. 2021 2.29 1.78 – 205 -0.016 – – –
Spina et al. 2021 2.76 – – 126 – – – –
Cantat-Gaudin et al. 2020 2.79 1.39 – 126 – – – –
Kounkel et al. 2020 2.96 2.38 – 46 – – – –
Cantat-Gaudin & Anders 2020 2.51 – – – – – – –
Liu & Pang 2019 – – – 110 -0.500 – – –
Cantat-Gaudin et al. 2018 2.51 – – – – – – –
Dib et al. 2018 1.93 – – 292 – – – –
Kharchenko et al. 2016 1.93 1.71 – 292 – – – –
Kharchenko et al. 2013 1.93 1.71 – 292 – – – –
Bukowiecki et al. 2012 – – – – – 1968 – –
Bukowiecki et al. 2011 2.79(1) 1.96 – 100 – – – –
van den Bergh 2006 2.57 1.67 – 87 – – – –
Kharchenko et al. 2003 1.43 1.61 – – – – – –
Dias et al. 2002 2.57 1.66 – 88 – – – –
Lynga 1987 – – – 126 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Bochum 8 100.0 153.06 -58.07 0.38 -5.4 2.34 26.8 0.21

πŸ’‘ Note: The % column shows the percentage of members that VDBH 90 shares with each listed object.

Visualization
ℹ️
VDBH 90 UCC
VDBH 90 HUNT23
VDBH 90 CANTAT20
Galactocentric position diagram