HSC 343

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0.04 UTI
0.0
CN
0.06
Cdens
0.12
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 42.6 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.06 Very loose
  • CC3 0.12 Very low quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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HSC 343 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age cluster (see Parameters). It was recently reported in the literature.

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.

Close Moderate extinction Metal-poor Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 287.564 2.929 1.594 2.28 -3.119 -9.356
Cavallo et al. 2024 287.513 3.183 1.6 – – –
Hunt & Reffert 2023 286.957 2.331 1.597 2.239 -3.161 -1.62

💡 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
Cavallo et al. 2024 0.56 1.42 – 166 -0.630 – – –
Hunt & Reffert 2023 0.59 1.16 0.98 133 – – – –

Visualization

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