Theia 3992

0.00 UTI

0.33

C_N

1.0

C_dens

0.38

C_C3

0.25

C_lit

0.0

C_dup

N₅₀ (P>50% members) 33

Stellar density (N₅₀/rad) 13.0 [N/pc²]

C3 classification CB

C_N 0.33 Poorly populated
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.25 Poorly studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Theia 3992 is a poorly populated, very dense object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It was recently reported in the literature.

⚠️ 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.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 3992 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	119.189	-29.603	0.347	-2.058	1.316	–
Hu & Soubiran	2025	119.187	-29.596	–	–	–	–
Hunt & Reffert	2024	119.197	-29.607	0.338	-2.057	1.331	–
Cavallo et al.	2024	119.187	-29.596	0.34	–	–	–
Hunt & Reffert	2023	119.197	-29.607	0.338	-2.057	1.331	–

💡 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]	B_frac	BSS
UCC	99999–	2.55	1.15	0.69	560	0.210	240	–	–
Hu & Soubiran	2025	–	–	–	–	-0.190⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	240⁽¹⁾	–	–
Cavallo et al.	2024	2.39	0.83	–	955	0.610	–	–	–
Hunt & Reffert	2023	2.71	1.47	0.69	165	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 269	100.0	119.19	-29.6	0.35	-2.06	1.32	–	0.05
UBC 1413	97.0	119.19	-29.6	0.35	-2.06	1.31	–	0.37

💡 Note: The % column shows the percentage of members that Theia 3992 shares with each listed object.

Visualization

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