Theia 3916

0.13 UTI

0.56

C_N

0.17

C_dens

0.75

C_C3

0.03

C_lit

0.43

C_dup

N_m (P>50%) 61

Core radius and density 3.5 [pc], 0.8 [pc^-2]

C3 classification AB

C_N 0.56 Moderately populated
C_dens 0.17 Very loose
C_C3 0.75 High quality
C_lit 0.03 Rarely studied
C_dup 0.43 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 3916 is a moderately populated, very loose object of high C3 quality. Its parallax locates it at a relatively close distance, below 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.

⚠️ 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.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for Theia 3916 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–	315.098	38.991	0.963	-3.277	-8.965	-15.502
Hunt & Reffert	2024	315.091	39.002	0.947	-3.266	-8.916	-16.279
Cavallo et al.	2024	314.959	38.937	0.95	–	–	–
Hunt & Reffert	2023	315.091	39.002	0.947	-3.266	-8.916	-16.279

💡 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–	1.01	1.09	1.48	142	0.380	179	–	–
Hunt & Reffert	2024	1.01	1.09	1.48	142	–	179⁽¹⁾	–	–
Cavallo et al.	2024	1.06	1.02	–	355	0.380	–	–	–
Hunt & Reffert	2023	1.01	1.09	1.48	142	–	–	–	–

(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 1148	57.4	315.04	38.99	0.96	-3.27	-8.96	-14.92	0.19

💡 Note: The % column shows the percentage of members that Theia 3916 shares with each listed object.

Visualization

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