HSC 2977

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0.45 UTI
0.44
CN
0.82
Cdens
1.0
CC3
0.0
Clit
1.0
Cdup
Stellar density (N50/rad) 4.1 [N/pc2]
  • CN 0.44 Poorly populated
  • Cdens 0.82 Dense
  • CC3 1.0 Very high quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

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HSC 2977 is a poorly populated, dense object of very high C3 quality. Its parallax locates it at a moderate* distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, metal-poor, intermediate-age cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~2.62 kpc) differs significantly from the median photometric distance (~1.95 kpc).

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

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 99999– 267.222 -30.901 0.381 -0.392 -2.531 19.901
Hunt & Reffert 2024 267.203 -30.906 0.38 -0.368 -2.495 37.63
Cavallo et al. 2024 267.221 -30.911 0.382 – – –
Hunt & Reffert 2023 267.203 -30.906 0.38 -0.368 -2.495 37.63

💡 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] Bfrac BSS
UCC 99999– 1.95 3.68 2.23 127 -0.890 1376 – –
Hunt & Reffert 2024 – – – – – 1376(1) – –
Cavallo et al. 2024 1.49 3.74 – 93 -0.890 – – –
Hunt & Reffert 2023 2.41 3.62 2.23 161 – – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 4289 100.0 267.23 -30.92 0.39 -0.39 -2.54 -2.48 0.21

💡 Note: The % column shows the percentage of members that HSC 2977 shares with each listed object.

Visualization

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