Theia 229

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0.12 UTI
0.39
CN
0.21
Cdens
0.62
CC3
0.0
Clit
0.49
Cdup
Radius (P>50% members) 66.5 [arcmin]
  • CN 0.39 Poorly populated
  • Cdens 0.21 Very loose
  • CC3 0.62 Intermediate quality
  • Clit 0.0 Rarely studied
  • Cdup 0.49 Possibly duplicate

Overview

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Theia 229 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, below 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: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

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 – 90.585 -27.983 3.203 -6.517 -0.17 2.034
Cavallo et al. 2024 92.611 -28.167 3.183 – – –
Hunt & Reffert 2023 90.253 -27.85 3.178 -6.262 -0.298 2.669

💡 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 0.32 0.42 – 71 -0.120 – – –
Hunt & Reffert 2023 0.30 0.06 0.44 131 – – – –
Cluster % RA DEC Plx pmRA pmDE Rv UTI
ESO 489 01 51.3 90.79 -27.21 3.19 -6.54 0.01 3.26 0.2
OCSN 81 33.3 91.01 -27.1 3.19 -6.59 0.26 3.26 0.02

💡 Note: The % column shows the percentage of members that Theia 229 shares with each listed object.

Visualization

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