Theia 3428

0.00 UTI

0.43

C_N

1.0

C_dens

0.75

C_C3

0.25

C_lit

0.0

C_dup

C3 classification AB

Number of members (P>50%) 43

Radius (P>50% members) 5.9 [arcmin]

C_N 0.43 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.25 Poorly studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Theia 3428 is a poorly populated, very dense 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 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 3428 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	–	90.319	4.565	0.717	0.479	-2.076	33.6
Zhang et al.	2024	90.301	4.602	–	–	–	–
Hunt & Reffert	2024	90.301	4.602	0.707	0.465	-2.07	48.074
Cavallo et al.	2024	90.338	4.527	0.712	–	–	–
Hunt & Reffert	2023	90.301	4.602	0.707	0.465	-2.07	48.074

💡 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	–	–	–	–	0.001*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	343*	–	–
Cavallo et al.	2024	1.43	2.00	–	282	0.300	–	–	–
Hunt & Reffert	2023	1.31	1.87	2.52	141	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 257	100.0	90.33	4.56	0.73	0.49	-2.06	39.31	0.2
UBC 1325	83.7	90.32	4.56	0.72	0.5	-2.08	23.35	0.42

💡 Note: The % column shows the percentage of members that Theia 3428 shares with each listed object.

Visualization

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