UFMG 39

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0.66 UTI
0.68
CN
1.0
Cdens
0.75
CC3
0.44
Clit
1.0
Cdup
Radius (P>50% members) 7.2 [arcmin]
  • CN 0.68 Moderately populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.44 Poorly studied
  • Cdup 1.0 Unique

Overview

â„šī¸
UFMG 39 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above 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 metallicity parameter (see Parameters). It is poorly studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 219.024 -57.876 0.646 -3.417 -1.589 -39.123
Hu & Soubiran 2025 218.97 -57.891 – – – –
Almeida et al. 2025 218.995 -57.865 – – – –
Hunt & Reffert 2024 219.02 -57.874 0.651 -3.451 -1.585 -29.556
Cavallo et al. 2024 218.97 -57.891 0.66 – – –
Hunt & Reffert 2023 219.02 -57.874 0.651 -3.451 -1.585 -29.556
Dias et al. 2021 218.995 -57.865 0.624 -3.422 -1.627 –
Ferreira et al. 2020 219.01 -57.865 0.626 -3.421 -1.616 –

💡 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
Hu & Soubiran 2025 – – – – -0.220* – – –
Almeida et al. 2025 1.50 1.73 – 236 – 102 – –
Hunt & Reffert 2024 – – – – – 220* – –
Cavallo et al. 2024 1.43 1.12 – 759 0.580 – – –
Hunt & Reffert 2023 1.45 1.52 0.39 290 – – – –
Dias et al. 2021 1.50 1.73 – 236 0.014 – – –
Ferreira et al. 2020 1.26 1.55 – 562 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0615 31.0 219.01 -57.89 0.66 -3.4 -1.58 -29.59 0.0

💡 Note: The % column shows the percentage of members that UFMG 39 shares with each listed object.

Visualization

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