Dias 6

(MWSC 2932; BBD 5; FoF 291)

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0.97 UTI
0.87
CN
1.0
Cdens
1.0
CC3
1.0
Clit
1.0
Cdup
C3 classification AA
Number of members (P>50%) 425
Radius (P>50% members) 3.9 [arcmin]
  • CN 0.87 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 1.0 Very well-studied
  • Cdup 1.0 Unique
πŸ“₯ Members πŸ“Š Colab πŸ”¬ Bayestar19 πŸ” CDS πŸ” Simbad πŸ” CDS (Ξ±, Ξ΄) πŸ” Simbad (Ξ±, Ξ΄)

Overview
ℹ️
Dias 6 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 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.
Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data
πŸ” Search references for Dias 6 in: SciX Simbad
ℹ️
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 277.617 -12.33 0.342 0.506 -0.59 5.51
Li et al. 2025 277.617 -12.33 0.331 0.482 -0.591 –
Hu & Soubiran 2025 277.62 -12.331 – – – –
Almeida et al. 2025 277.621 -12.333 – – – –
Hunt & Reffert 2024 277.615 -12.332 0.337 0.516 -0.582 3.534
Cavallo et al. 2024 277.62 -12.331 0.335 – – –
Hunt & Reffert 2023 277.615 -12.332 0.337 0.516 -0.582 3.534
Just et al. 2023 277.627 -12.306 – – – –
Dias et al. 2021 277.621 -12.333 0.334 0.474 -0.588 2.188
Cantat-Gaudin et al. 2020 277.617 -12.33 0.331 0.482 -0.591 –
SΓ‘nchez et al. 2020 277.625 -12.316 – 0.435 -0.524 –
Cantat-Gaudin & Anders 2020 277.617 -12.33 0.331 0.482 -0.591 –
Liu & Pang 2019 277.617 -12.332 0.334 0.462 -0.605 –
Soubiran et al. 2018 277.617 -12.33 – – – 4.52
Bica et al. 2019 277.616 -12.316 – – – –
Cantat-Gaudin et al. 2018 277.617 -12.33 0.331 0.482 -0.591 –
Loktin & Popova 2017 277.62 -12.316 – -1.115 -2.737 –
Kharchenko et al. 2016 277.627 -12.306 – – – –
Dias et al. 2014 277.625 -12.316 – -1.04 -1.65 –
Kharchenko et al. 2013 277.635 -12.305 – 0.0 -3.18 –
Dias et al. 2002 277.625 -12.316 – -1.04 -1.65 –

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
Li et al. 2025 1.92 2.86 – 960 -0.068 – – –
Hu & Soubiran 2025 – – – – -0.320* – – –
Almeida et al. 2025 2.40 2.80 – 566 – 1731 – –
Hunt & Reffert 2024 – – – – – 4732* – –
Cavallo et al. 2024 2.02 3.42 – 603 -0.080 – – –
Hunt & Reffert 2023 2.70 3.35 2.50 128 – – – –
Just et al. 2023 – – – 398 – 755 – –
Dias et al. 2021 2.40 2.80 – 566 0.174 – – –
Cantat-Gaudin et al. 2020 2.52 1.85 – 1096 – – – –
Cantat-Gaudin & Anders 2020 2.78 – – – – – – –
Liu & Pang 2019 – – – 1230 -2.000 – – –
Soubiran et al. 2018 2.78 – – – – – – –
Cantat-Gaudin et al. 2018 2.78 – – – – – – –
Loktin & Popova 2017 4.70 3.12 – 100 – – – –
Kharchenko et al. 2016 1.92 2.77 – 398 – – – –
Kharchenko et al. 2013 1.92 2.77 – 398 – – – –
Dias et al. 2002 2.24 2.70 – 708 – – – –

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

Visualization
ℹ️
Dias 6 UCC
Dias 6 HUNT23
Dias 6 CANTAT20
Galactocentric position diagram