HSC 511

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0.08 UTI
0.0
CN
0.0
Cdens
0.38
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 4.3 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.0 Very loose
  • CC3 0.38 Low quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

â„šī¸
HSC 511 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, old cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~23.98 kpc) differs significantly from the median photometric distance (~7.86 kpc).

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-poor Old

Cavallo et al. (2024)
Bronze sample.

Data

â„šī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 295.67 28.309 0.042 -2.259 -4.187 -82.645
Hunt & Reffert 2024 295.671 28.306 0.04 -2.245 -4.18 -81.788
Cavallo et al. 2024 295.671 28.302 0.041 – – –
Hunt & Reffert 2023 295.671 28.306 0.04 -2.245 -4.18 -81.788

💡 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 – – – – – 900* – –
Cavallo et al. 2024 3.44 2.96 – 3020 -0.600 – – –
Hunt & Reffert 2023 12.28 2.95 1.65 14 – – – –

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

Visualization

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