UBC 293

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0.72 UTI
0.67
CN
0.92
Cdens
1.0
CC3
0.5
Clit
1.0
Cdup
Radius (P>50% members) 4.4 [arcmin]
  • CN 0.67 Moderately populated
  • Cdens 0.92 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.5 Moderately studied
  • Cdup 1.0 Unique

Overview

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UBC 293 is a moderately populated, very dense object of very high 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 parameter (see Parameters). It is moderately studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Silver sample.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 202.733 -61.784 0.3 -4.468 -1.687 -36.563
Almeida et al. 2025 202.731 -61.781 – – – –
Hunt & Reffert 2024 202.692 -61.802 0.303 -4.501 -1.686 -41.765
Celli et al. 2024 202.711 -61.775 – – – –
Cavallo et al. 2024 202.74 -61.786 0.301 – – –
Hunt & Reffert 2023 202.692 -61.802 0.303 -4.501 -1.686 -41.765
Dias et al. 2021 202.731 -61.781 0.298 -4.439 -1.708 –
Cantat-Gaudin et al. 2020 202.711 -61.775 0.291 -4.434 -1.714 –
Castro-Ginard et al. 2020 202.749 -61.768 0.293 -4.44 -1.71 –

💡 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 2.86 1.91 – 58 – 1028 – –
Hunt & Reffert 2024 – – – – – 851* – –
Celli et al. 2024 – – – 20 – 648 – –
Cavallo et al. 2024 2.70 1.78 – 288 -0.400 – – –
Hunt & Reffert 2023 2.95 2.08 1.90 56 – – – –
Dias et al. 2021 2.86 1.91 – 58 0.297 – – –
Cantat-Gaudin et al. 2020 3.30 1.62 – 20 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 2259 54.8 202.68 -61.78 0.31 -4.49 -1.65 -41.75 0.12

💡 Note: The % column shows the percentage of members that UBC 293 shares with each listed object.

Visualization

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