Dias 5

(MWSC 2876)

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0.91 UTI
0.82
CN
1.0
Cdens
0.75
CC3
1.0
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 279
Radius (P>50% members) 6.0 [arcmin]
  • CN 0.82 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 1.0 Very 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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Dias 5 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young 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 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

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

Cavallo et al. (2024)
Silver sample.

Data
🔍 Search references for Dias 5 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 – 274.358 -19.726 0.744 1.789 -0.946 -1.815
Almeida et al. 2025 274.362 -19.701 – – – –
Hunt & Reffert 2024 274.375 -19.707 0.739 1.774 -0.931 41.436
Celli et al. 2024 274.385 -19.707 – – – –
Cavallo et al. 2024 274.313 -19.72 0.74 – – –
Hunt & Reffert 2023 274.375 -19.707 0.739 1.774 -0.931 41.436
Almeida et al. 2023 274.361 -19.692 – – – –
Just et al. 2023 274.402 -19.661 – – – –
Dias et al. 2021 274.362 -19.701 0.73 1.802 -0.909 –
Cantat-Gaudin et al. 2020 274.385 -19.707 0.744 1.798 -0.945 –
Cantat-Gaudin & Anders 2020 274.385 -19.707 0.744 1.798 -0.945 –
Soubiran et al. 2018 274.385 -19.707 – – – -26.59
Cantat-Gaudin et al. 2018 274.385 -19.707 0.744 1.798 -0.945 –
Kharchenko et al. 2016 274.402 -19.661 – – – –
Kharchenko et al. 2013 274.41 -19.66 – 2.11 -4.09 -5.2
Gozha et al. 2012 274.417 -19.67 – – – –
Piskunov et al. 2008 274.398 -19.673 – – – –
Kharchenko et al. 2007 274.41 -19.67 – 0.12 – -5.25
Kharchenko et al. 2005 274.41 -19.67 – 1.92 -0.37 -5.25
Dias et al. 2002 274.417 -19.67 – 1.69 -0.54 -7.5

💡 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 1.26 1.32 – 7 – 374 – –
Hunt & Reffert 2024 – – – – – 532* – –
Celli et al. 2024 – – – 10 – 298 – –
Cavallo et al. 2024 1.34 1.92 – 7 -0.110 – – –
Hunt & Reffert 2023 1.26 1.61 2.61 6 – – – –
Almeida et al. 2023 1.26 1.54 – 5 0.064 517* 0.51 –
Just et al. 2023 – – – 126 – 60 – –
Dias et al. 2021 1.26 1.32 – 7 0.224 – – –
Cantat-Gaudin et al. 2020 1.31 0.94 – 10 – – – –
Cantat-Gaudin & Anders 2020 1.29 – – – – – – –
Soubiran et al. 2018 1.29 – – – – – – –
Cantat-Gaudin et al. 2018 1.29 – – – – – – –
Kharchenko et al. 2016 1.29 3.36 – 126 – – – –
Kharchenko et al. 2013 1.29 3.36 – 126 – – – –
Gozha et al. 2012 1.76 – – 14 – 933 – –
Piskunov et al. 2008 1.76 1.02 – 14 – – – –
Kharchenko et al. 2005 1.76 1.02 – 14 – – – –
Dias et al. 2002 1.76 1.02 – 14 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
VVVX CL083 3.9 273.96 -19.73 0.72 1.64 -0.93 -16.53 0.19
VVVX CL088 0.4 274.14 -19.91 0.49 0.63 -1.05 -19.84 0.48

💡 Note: The % column shows the percentage of members that Dias 5 shares with each listed object.

Visualization
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Dias 5 UCC
Dias 5 HUNT23
Dias 5 CANTAT20
Galactocentric position diagram