DBSB 7

(MWSC 1274; FoF 1411)

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0.68 UTI
0.64
CN
1.0
Cdens
0.25
CC3
0.75
Clit
1.0
Cdup
C3 classification DB
Number of members (P>50%) 78
Radius (P>50% members) 4.5 [arcmin]
  • CN 0.64 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.25 Low quality
  • Clit 0.75 Well-studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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DBSB 7 is a moderately populated, very dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young 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 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Silver sample.

Data
🔍 Search references for DBSB 7 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 – 113.862 -18.644 0.391 -1.718 2.403 109.31
Almeida et al. 2025 113.851 -18.698 – – – –
Hunt & Reffert 2024 113.892 -18.767 0.244 -1.841 2.264 –
Cavallo et al. 2024 113.849 -18.807 0.245 – – –
Hunt & Reffert 2023 113.892 -18.767 0.244 -1.841 2.264 –
Almeida et al. 2023 113.839 -18.696 – – – –
Just et al. 2023 113.878 -18.763 – – – –
Dias et al. 2021 113.851 -18.698 0.323 -1.688 2.387 –
Cantat-Gaudin et al. 2020 113.855 -18.677 0.351 -1.683 2.401 –
Cantat-Gaudin & Anders 2020 113.855 -18.677 0.351 -1.683 2.401 –
Liu & Pang 2019 113.825 -18.607 0.362 -1.748 2.344 –
Cantat-Gaudin et al. 2018 113.855 -18.677 0.351 -1.683 2.401 –
Kharchenko et al. 2016 113.878 -18.763 – – – –
Kharchenko et al. 2013 113.884 -18.765 – -1.44 3.3 –

💡 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
Almeida et al. 2025 2.18 1.81 – 121 – 420 – –
Hunt & Reffert 2024 – – – – – 208* – –
Cavallo et al. 2024 2.69 2.37 – 19 0.070 – – –
Hunt & Reffert 2023 3.60 2.60 1.83 73 – – – –
Almeida et al. 2023 2.15 2.06 – 24 -0.098 1235* 0.52 –
Just et al. 2023 – – – 31 – 254 – –
Dias et al. 2021 2.18 1.81 – 121 -0.051 – – –
Cantat-Gaudin et al. 2020 2.67 1.45 – 275 – – – –
Cantat-Gaudin & Anders 2020 2.63 – – – – – – –
Liu & Pang 2019 – – – 6 0.500 – – –
Cantat-Gaudin et al. 2018 2.63 – – – – – – –
Kharchenko et al. 2016 2.55 2.58 – 31 – – – –
Kharchenko et al. 2013 2.55 2.58 – 31 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Theia 2110 80.8 113.86 -18.63 0.4 -1.75 2.41 122.74 0.14
CWWDL 13798 39.7 113.86 -18.6 0.41 -1.74 2.41 – 0.09

💡 Note: The % column shows the percentage of members that DBSB 7 shares with each listed object.

Visualization
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DBSB 7 UCC
DBSB 7 HUNT23
DBSB 7 CANTAT20
Galactocentric position diagram