UBC 1555

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0.59 UTI
0.43
CN
1.0
Cdens
1.0
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members) 3.9 [arcmin]
  • CN 0.43 Poorly populated
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.25 Poorly studied
  • Cdup 1.0 Unique

Overview

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UBC 1555 is a poorly populated, 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 metal-poor, intermediate-age cluster (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 Metal-poor Intermediate age

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 – 251.249 -46.52 0.449 -0.458 -1.576 -47.311
Hunt & Reffert 2024 251.25 -46.54 0.46 -0.47 -1.587 -47.292
Cavallo et al. 2024 251.268 -46.543 0.46 – – –
Hunt & Reffert 2023 251.25 -46.54 0.46 -0.47 -1.587 -47.292
Castro-Ginard et al. 2022 251.25 -46.53 0.46 -0.46 -1.57 -48.22

💡 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
Hunt & Reffert 2024 – – – – – 296* – –
Cavallo et al. 2024 1.69 2.00 – 93 -0.640 – – –
Hunt & Reffert 2023 2.05 1.23 0.64 100 – – – –
Castro-Ginard et al. 2022 2.30 1.14 – 114 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWWDL 13625 41.9 251.24 -46.55 0.47 -0.43 -1.63 – 0.08

💡 Note: The % column shows the percentage of members that UBC 1555 shares with each listed object.

Visualization

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