OC 0369

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0.59 UTI
0.25
CN
1.0
Cdens
1.0
CC3
0.35
Clit
1.0
Cdup
Stellar density (N50/rad) 12.9 [N/pc2]
  • CN 0.25 Poorly populated
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.35 Poorly studied
  • Cdup 1.0 Unique

Overview

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OC 0369 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is poorly studied in the literature.

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

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 146 along with FSR_1149.

Palma et al. (2025)
Classified as optical pair P388, along with FSR_1149.

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– 105.787 -6.921 0.418 -1.135 1.421 27.183
Hu & Soubiran 2025 105.794 -6.927 – – – –
Hunt & Reffert 2024 105.785 -6.918 0.413 -1.149 1.431 27.183
Cavallo et al. 2024 105.794 -6.927 0.415 – – –
Hunt & Reffert 2023 105.785 -6.918 0.413 -1.149 1.431 27.183
Hao et al. 2022 105.778 -6.911 0.407 -1.174 1.419 –

💡 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– 2.2 0.925 1.26 388 -0.090 125 – –
Liu et al. 2025 4.97 0.55 – 16 – – – –
Hu & Soubiran 2025 – – – – -0.300(5) – – –
Hunt & Reffert 2024 – – – – – 125(1) – –
Cavallo et al. 2024 1.91 0.55 – 891 -0.090 – – –
Hunt & Reffert 2023 2.20 1.30 1.26 145 – – – –
Hao et al. 2022 – 1.82 – 631 0.051 – – –

(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 401 92.0 105.79 -6.92 0.41 -1.13 1.41 27.18 0.03

💡 Note: The % column shows the percentage of members that OC 0369 shares with each listed object.

Visualization

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