HSC 1877

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0.06 UTI
0.0
CN
0.03
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 5.3 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.03 Very loose
  • CC3 0.25 Low quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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HSC 1877 is a sparse, 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 metal-rich, 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.

Very distant Moderate extinction Metal-rich 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 – 111.287 -21.92 0.13 -1.091 1.738 76.468
Cavallo et al. 2024 111.281 -21.933 0.122 – – –
Hunt & Reffert 2023 111.363 -21.88 0.119 -1.089 1.728 72.891

💡 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 6.98 1.71 – 339 0.570 – – –
Hunt & Reffert 2023 7.24 2.73 2.19 62 – – – –

Visualization

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