Theia 3423

0.03 UTI

0.0

C_N

1.0

C_dens

0.38

C_C3

0.0

C_lit

0.12

C_dup

C3 classification CB

Number of members (P>50%) 23

Radius (P>50% members) 3.6 [arcmin]

C_N 0.0 Sparse
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.12 Likely duplicate

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

Overview

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Theia 3423 is a sparse, very dense object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is 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 Low extinction Old

Data

🔍 Search references for Theia 3423 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	–	124.7	-30.585	0.585	-3.019	2.626	–
Hunt & Reffert	2024	124.677	-30.562	0.749	-3.039	2.646	49.708
Hunt & Reffert	2023	124.677	-30.562	0.749	-3.039	2.646	49.708

💡 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
Hunt & Reffert	2024	–	–	–	–	–	106*	–	–
Hunt & Reffert	2023	1.32	0.23	0.37	1738	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Melotte 86	88.0	124.64	-30.62	0.57	-2.97	2.61	34.59	0.96

💡 Note: The % column shows the percentage of members that Theia 3423 shares with each listed object.

Visualization

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