Theia 1083

0.28 UTI

0.0

C_N

0.57

C_dens

0.25

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 2.9 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.57 Moderately dense
C_C3 0.25 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 1083 is a sparse, moderately dense object of low C3 quality. Its parallax locates it at a close 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.

Close Moderate extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Part of multiple system G106, along with CWNU_1086, Theia_47, UPK_325, HSC_1210 and HSC_1205.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 1083 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–	69.267	48.431	1.327	0.537	-4.676	-10.407
Hu & Soubiran	2025	69.576	48.308	–	–	–	–
Zhang et al.	2024	69.253	48.524	–	–	–	–
Hunt & Reffert	2024	69.253	48.524	1.314	0.57	-4.659	-18.855
Cavallo et al.	2024	69.576	48.308	1.318	–	–	–
Hunt & Reffert	2023	69.253	48.524	1.314	0.57	-4.659	-18.855

💡 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–	0.745	1.56	1.02	338	-0.050	72	–	–
Hu & Soubiran	2025	–	–	–	–	-0.050⁽⁵⁾	–	–	–
Zhang et al.	2024	–	–	–	–	-0.281⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	72⁽¹⁾	–	–
Cavallo et al.	2024	0.77	1.41	–	525	0.560	–	–	–
Hunt & Reffert	2023	0.72	1.71	1.02	152	–	–	–	–

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

Visualization

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