OC 0697

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0.13 UTI
0.77
CN
1.0
Cdens
1.0
CC3
0.25
Clit
0.2
Cdup
Stellar density (N50/rad) 25.1 [N/pc2]
  • CN 0.77 Rich
  • Cdens 1.0 Very dense
  • CC3 1.0 Very high quality
  • Clit 0.25 Poorly studied
  • Cdup 0.2 Likely duplicate

Overview

â„šī¸
OC 0697 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a very massive, near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.

âš ī¸ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Palma et al. (2025)
Part of multiple system G51, along with UBC_565, Collinder_333, CWNU_2274 and UBC_566.

Cavallo et al. (2024)
Silver 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– 264.075 -33.498 0.399 -0.161 -1.303 -39.514
Hunt & Reffert 2024 264.06 -33.493 0.397 -0.177 -1.293 -27.856
Cavallo et al. 2024 264.074 -33.487 0.397 – – –
Hunt & Reffert 2023 264.06 -33.493 0.397 -0.177 -1.293 -27.856
Hao et al. 2022 264.074 -33.502 0.389 -0.19 -1.319 -19.895

💡 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– 2.185 4.3 2.85 7 0.210 5455 – –
Hunt & Reffert 2024 – – – – – 5455(1) – –
Cavallo et al. 2024 2.06 4.47 – 7 -0.190 – – –
Hunt & Reffert 2023 2.31 4.30 2.85 7 – – – –
Hao et al. 2022 – 3.86 – 2 0.611 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
Trumpler 27 79.8 264.08 -33.5 0.4 -0.19 -1.28 -60.32 0.87

💡 Note: The % column shows the percentage of members that OC 0697 shares with each listed object.

Visualization

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