HSC 625

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0.33 UTI
0.28
CN
0.85
Cdens
1.0
CC3
0.0
Clit
0.79
Cdup
Stellar density (N50/rad) 4.2 [N/pc2]
  • CN 0.28 Poorly populated
  • Cdens 0.85 Dense
  • CC3 1.0 Very high quality
  • Clit 0.0 Rarely studied
  • Cdup 0.79 Very likely unique

Overview

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HSC 625 is a poorly populated, dense object of very high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by very high extinction. It is catalogued as a metal-rich, very young cluster (see Parameters). It was recently reported in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Palma et al. (2025)
Part of multiple system G187, along with OC_0128 and Bica_2.

Cavallo et al. (2024)
Wood 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– 308.225 40.83 0.577 -2.605 -4.891 53.483
Hunt & Reffert 2024 308.198 40.838 0.574 -2.601 -4.899 186.214
Cavallo et al. 2024 308.224 40.817 0.574 – – –
Hunt & Reffert 2023 308.198 40.838 0.574 -2.601 -4.899 186.214

💡 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– 1.94 6.035 2.33 10 0.930 630 – –
Hunt & Reffert 2024 – – – – – 630(1) – –
Cavallo et al. 2024 2.21 5.49 – 5 0.930 – – –
Hunt & Reffert 2023 1.67 6.58 2.33 14 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OC 0128 21.4 307.98 40.8 0.58 -2.97 -4.4 38.32 0.67

💡 Note: The % column shows the percentage of members that HSC 625 shares with each listed object.

Visualization

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