VDB 92

(van den Bergh 92; vdBergh 92; FSR 1188; CMa06)

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0.92 UTI
1.0
CN
1.0
Cdens
0.75
CC3
0.94
Clit
1.0
Cdup
Nm (P>50%) 682
Core radius and density 2.5 [pc], 14 [pc-2]
C3 classification AB
  • CN 1.0 Very rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.94 Very well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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VDB 92 is a very rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is very well-studied in the literature.

Note: This object shares a small percentage of members with 4 later reported entries. See table with shared members information.

Liu et al. (2025)
Classified as primordial binary cluster 29 along with BDSB_96, and as primordial binary cluster 148 along with FSR_1178, and of multiple system 14 along with BDSB_96, OC_0377 and FSR_1178.

Palma et al. (2025)
Part of multiple system G89, along with OC_0377, BDSB_96 and FSR_1178.

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.88 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.88 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.4163, e_all=0.0285.

Data
🔍 Search references for VDB 92 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– 106.049 -11.481 0.864 -4.409 1.565 24.517
Liu et al. 2025 106.04 -11.44 0.88 -4.39 1.58 22.27
Li et al. 2025 106.038 -11.475 0.842 -4.54 1.618 –
Almeida et al. 2025 106.043 -11.488 – – – –
Swiggum et al. 2024 106.037 -11.442 0.875 -4.385 1.583 24.517
Hunt & Reffert 2024 106.037 -11.442 0.875 -4.385 1.583 22.272
Celli et al. 2024 106.038 -11.475 – – – –
Cavallo et al. 2024 106.099 -11.456 0.869 – – –
Hunt & Reffert 2023 106.037 -11.442 0.875 -4.385 1.583 22.272
Almeida et al. 2023 106.069 -11.494 – – – –
He et al. 2022 106.186 -11.333 0.866 -3.997 1.506 –
Santos-Silva et al. 2021 106.11 -11.45 0.85 -4.2 1.52 –
Dias et al. 2021 106.043 -11.488 0.834 -4.539 1.607 27.58
Cantat-Gaudin et al. 2020 106.038 -11.475 0.842 -4.54 1.618 –
Cantat-Gaudin & Anders 2020 106.038 -11.475 0.842 -4.54 1.618 –
Dias et al. 2019 105.975 -11.533 0.86 -4.469 1.461 25.6
Soubiran et al. 2018 106.038 -11.475 – – – 27.99
Cantat-Gaudin et al. 2018 106.038 -11.475 0.842 -4.54 1.618 –
Dib et al. 2018 106.02 -11.53 – – – –
Loktin & Popova 2017 105.975 -11.533 – -1.737 2.196 17.5
Joshi et al. 2016 106.02 -11.53 – – – –
Dias et al. 2014 105.975 -11.533 – -2.1 3.87 –
Gozha et al. 2012 105.975 -11.533 – – – –
Piskunov et al. 2008 105.973 -11.489 – – – –
Kharchenko et al. 2007 105.97 -11.53 – 0.2 – 17.5
Piskunov et al. 2007 105.973 -11.489 – – – –
Froebrich et al. 2007 106.0 -11.579 – – – –
Kharchenko et al. 2005 105.97 -11.49 – -5.22 2.52 17.33
Kharchenko et al. 2003 106.02 -11.47 – -5.11 2.37 –
Dias et al. 2002 105.975 -11.533 – -2.1 3.87 17.5
Lynga 1987 105.978 -11.52 – – – –

💡 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– 1.15 0.975 2.38 8 -0.113 589 0.52 –
Liu et al. 2025 1.09 0.24 – 18 – – – –
Li et al. 2025 0.89 0.83 – 5 -0.366 – – –
Almeida et al. 2025 1.11 0.98 – 6 – 559 – –
Swiggum et al. 2024 1.11 – – 4 – 807 – –
Hunt & Reffert 2024 1.09 1.11 2.38 4 – 735(1) – –
Celli et al. 2024 – – – 8 – 363 – –
Cavallo et al. 2024 1.12 1.16 – 3 -0.150 – – –
Hunt & Reffert 2023 1.09 1.11 2.38 4 – – – –
Almeida et al. 2023 1.08 0.97 – 7 -0.076 827(1) 0.52 –
He et al. 2022 – 1.40 – 6 – – – –
Santos-Silva et al. 2021 1.10(1) 0.96(1) – 10(1) -0.150(1) – – –
Dias et al. 2021 1.11 0.98 – 6 0.025 – – –
Cantat-Gaudin et al. 2020 1.19 1.27 – 8 – – – –
Kounkel et al. 2020 1.08 1.45 – 14 – – – –
Cantat-Gaudin & Anders 2020 1.15 – – – – – – –
Dias et al. 2019 1.08 0.95 – 7 0.350 – – –
Soubiran et al. 2018 1.15 – – – – – – –
Cantat-Gaudin et al. 2018 1.15 – – – – – – –
Dib et al. 2018 1.57 – – 23 – – – –
Loktin & Popova 2017 1.42 1.06 – 6 – – – –
Joshi et al. 2016 1.57 1.18 – 23 – 589 – –
Gozha et al. 2012 1.43 – – 39 – 589 – –
Piskunov et al. 2008 1.50 0.79 – 39 – 658(1) – –
Piskunov et al. 2007 1.50 0.79 – 39 – 151 – –
Kharchenko et al. 2005 1.50 0.79 – 39 – – – –
Kharchenko et al. 2003 1.43 0.63 – – – – – –
Dias et al. 2002 1.50 0.79 – 39 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
BRC27 13.6 106.03 -11.41 0.87 -4.52 1.67 30.36 0.0
NGC 2327 12.2 106.03 -11.39 0.87 -4.55 1.66 30.36 0.0
FSR 1184 2.1 105.68 -11.45 0.88 -3.8 1.53 -10.55 0.15
CWWDL 14341 0.3 106.46 -11.12 0.85 -3.92 1.46 22.47 0.11

💡 Note: The % column shows the percentage of members that VDB 92 shares with each listed object.

Visualization
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VDB 92 UCC
VDB 92 HUNT23
VDB 92 CANTAT20
Galactocentric position diagram