Theia 4940

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0.06 UTI
0.25
CN
0.18
Cdens
0.5
CC3
0.0
Clit
0.32
Cdup
Radius (P>50% members) 18.0 [arcmin]
  • CN 0.25 Poorly populated
  • Cdens 0.18 Very loose
  • CC3 0.5 Intermediate quality
  • Clit 0.0 Rarely studied
  • Cdup 0.32 Possibly duplicate

Overview

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Theia 4940 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate 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.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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 – 30.075 68.613 0.993 0.744 0.589 -23.86
Hunt & Reffert 2024 29.339 68.667 0.984 0.751 0.598 -25.442
Cavallo et al. 2024 30.231 68.536 0.991 – – –
Hunt & Reffert 2023 29.339 68.667 0.984 0.751 0.598 -25.442

💡 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
Hunt & Reffert 2024 – – – – – 88* – –
Cavallo et al. 2024 1.12 2.58 – 87 0.290 – – –
Hunt & Reffert 2023 0.97 2.25 2.26 288 – – – –

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
CWNU 377 68.0 29.99 68.64 0.99 0.65 0.62 -34.08 0.15
CWNU 103 52.0 30.68 68.44 0.98 0.75 0.57 -18.34 0.12

💡 Note: The % column shows the percentage of members that Theia 4940 shares with each listed object.

Visualization

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