Theia 1366

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0.06 UTI
0.0
CN
0.06
Cdens
0.25
CC3
0.0
Clit
1.0
Cdup
Radius (P>50% members) 75.9 [arcmin]
  • CN 0.0 Sparse
  • Cdens 0.06 Very loose
  • CC3 0.25 Low quality
  • Clit 0.0 Rarely studied
  • Cdup 1.0 Unique

Overview

â„šī¸
Theia 1366 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.

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 close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

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Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 214.622 -63.233 2.628 3.691 -10.854 -5.029
Cavallo et al. 2024 216.918 -63.733 2.66 – – –
Hunt & Reffert 2023 211.815 -63.02 2.651 4.025 -10.677 -7.038

💡 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
Cavallo et al. 2024 0.37 0.76 – 302 0.200 – – –
Hunt & Reffert 2023 0.35 0.30 0.35 276 – – – –

Visualization

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