HSC 888

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0.09 UTI
0.0
CN
0.22
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 15.5 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.22 Very loose
  • CC3 0.25 Low quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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HSC 888 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, near-solar metallicity, 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 Low mass 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 – 349.627 60.66 0.998 -3.251 -4.502 -33.794
Hunt & Reffert 2024 349.614 60.696 0.977 -3.205 -4.422 -41.767
Cavallo et al. 2024 350.525 60.709 0.979 – – –
Hunt & Reffert 2023 349.614 60.696 0.977 -3.205 -4.422 -41.767

💡 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 – – – – – 47* – –
Cavallo et al. 2024 1.02 1.47 – 339 0.150 – – –
Hunt & Reffert 2023 0.97 1.31 1.90 197 – – – –

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

Visualization

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