Theia 38

Click to load Aladin Lite
0.00 UTI
0.25
CN
1.0
Cdens
0.75
CC3
0.25
Clit
0.0
Cdup
Radius (P>50% members) 6.9 [arcmin]
  • CN 0.25 Poorly populated
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.25 Poorly studied
  • Cdup 0.0 Very likely duplicate

Overview

â„šī¸
Theia 38 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

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

Close Moderate extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Data

â„šī¸
Reference Year RA [deg] DEC [deg] Plx [mas] pmRA [mas/yr] pmDE [mas/yr] Rv [km/s]
UCC – 291.815 21.143 2.02 1.228 -6.402 19.114
Zhang et al. 2024 291.745 21.117 – – – –
Hunt & Reffert 2024 291.745 21.117 1.981 1.181 -6.101 -11.229
Cavallo et al. 2024 290.753 22.222 1.979 – – –
Hunt & Reffert 2023 291.745 21.117 1.981 1.181 -6.101 -11.229

💡 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
Zhang et al. 2024 – – – – 0.030* – – –
Hunt & Reffert 2024 – – – – – 430* – –
Cavallo et al. 2024 0.53 1.53 – 4 -0.200 – – –
Hunt & Reffert 2023 0.49 0.77 2.05 6 – – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
OCSN 13 100.0 291.75 21.11 2.0 1.55 -6.64 -10.02 0.33
OC 0083 40.0 291.76 21.1 1.99 1.58 -6.74 -8.47 0.54

💡 Note: The % column shows the percentage of members that Theia 38 shares with each listed object.

Visualization

â„šī¸