HSC 766

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0.24 UTI
0.26
CN
0.18
Cdens
0.25
CC3
0.25
Clit
1.0
Cdup
Radius (P>50% members) 3.0 [arcmin]
  • CN 0.26 Poorly populated
  • Cdens 0.18 Very loose
  • CC3 0.25 Low quality
  • Clit 0.25 Poorly studied
  • Cdup 1.0 Unique

Overview

â„šī¸
HSC 766 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.

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

âš ī¸ Warning: the low UTI value and no obvious signs of duplication (Cdup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Distant Moderate extinction Near-solar metallicity 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 – 329.274 52.851 0.161 -3.741 -3.019 -39.98
Hu & Soubiran 2025 329.254 52.856 – – – –
Hunt & Reffert 2024 329.263 52.848 0.159 -3.702 -3.034 -40.123
Cavallo et al. 2024 329.254 52.856 0.16 – – –
Hunt & Reffert 2023 329.263 52.848 0.159 -3.702 -3.034 -40.123

💡 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 – – – – -0.310* – – –
Hunt & Reffert 2024 – – – – – 431* – –
Cavallo et al. 2024 4.19 2.03 – 1000 -0.140 – – –
Hunt & Reffert 2023 5.77 2.14 1.57 632 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 3080 96.2 329.28 52.85 0.16 -3.74 -3.02 -51.93 0.02

💡 Note: The % column shows the percentage of members that HSC 766 shares with each listed object.

Visualization

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