UPK 627

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0.44 UTI
0.31
CN
0.44
Cdens
0.25
CC3
0.6
Clit
1.0
Cdup
Radius (P>50% members) 24.4 [arcmin]
  • CN 0.31 Poorly populated
  • Cdens 0.44 Loose
  • CC3 0.25 Low quality
  • Clit 0.6 Moderately studied
  • Cdup 1.0 Unique

Overview

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UPK 627 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is moderately studied in the literature.
Close Low extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good 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 – 245.501 -53.071 1.895 -2.494 -10.061 -3.129
Almeida et al. 2025 245.446 -53.2 – – – –
Alfonso et al. 2024 245.363 -53.143 1.865 -2.519 -10.079 –
Hunt & Reffert 2024 245.37 -53.133 1.885 -2.49 -10.167 -6.636
Cavallo et al. 2024 244.966 -53.593 1.887 – – –
Hunt & Reffert 2023 245.37 -53.133 1.885 -2.49 -10.167 -6.636
Tarricq et al. 2022 245.306 -52.975 1.894 -2.505 -10.039 –
Dias et al. 2021 245.446 -53.2 1.876 -2.432 -10.0 -7.182
Cantat-Gaudin et al. 2020 245.354 -53.089 1.873 -2.447 -10.05 –
Cantat-Gaudin & Anders 2020 245.354 -53.138 1.872 -2.455 -10.017 –
Sim et al. 2019 245.55 -53.035 – -2.44 -10.06 –

💡 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 0.52 0.56 – 149 – 95 – –
Alfonso et al. 2024 0.53 0.22 – 309 -0.074 – – –
Hunt & Reffert 2024 – – – – – 67* – –
Cavallo et al. 2024 0.50 0.71 – 123 -0.140 – – –
Hunt & Reffert 2023 0.50 0.30 1.01 150 – – – –
Tarricq et al. 2022 0.53 – – 479 – – – –
Dias et al. 2021 0.52 0.56 – 149 -0.074 – – –
Cantat-Gaudin et al. 2020 0.53 0.22 – 468 – – – –
Cantat-Gaudin & Anders 2020 0.53 – – – – – – –
Sim et al. 2019 0.53 – – 100 – – – –

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

Visualization

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