Theia 4165

Click to load Aladin Lite
0.07 UTI
0.28
CN
0.6
Cdens
0.5
CC3
0.0
Clit
0.25
Cdup
C3 classification BB
Number of members (P>50%) 28
Radius (P>50% members) 7.0 [arcmin]
  • CN 0.28 Poorly populated
  • Cdens 0.6 Moderately dense
  • CC3 0.5 Intermediate quality
  • Clit 0.0 Rarely studied
  • Cdup 0.25 Possibly duplicate
📥 Members 📊 Colab 🔬 Bayestar19 🔍 SciX 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview
Theia 4165 is a poorly populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a relatively 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.

⚠️ 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 Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024): Gold sample.

Data
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 328.584 46.954 0.668 1.228 -2.33 -11.421
Hunt & Reffert 2024 328.586 46.965 0.67 1.245 -2.368 -11.527
Cavallo et al. 2024 328.123 46.817 0.67 – – –
Hunt & Reffert 2023 328.586 46.965 0.67 1.245 -2.368 -11.527

💡 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 – – – – – 103* – –
Cavallo et al. 2024 1.53 0.81 – 339 0.340 – – –
Hunt & Reffert 2023 1.43 0.45 0.77 607 – – – –

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.
(*): indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
HXHWL 1 75.0 328.51 46.91 0.67 1.26 -2.34 -13.97 0.2

💡 Note: The % column shows the percentage of members that Theia 4165 shares with each listed object.

Visualization
Theia 4165 UCC
Theia 4165 HUNT23
Galactocentric position diagram

💡 Note: How are the galactocentric plots generated? See FAQ.