Theia 3319

0.15 UTI

0.3

C_N

0.17

C_dens

0.75

C_C3

0.0

C_lit

0.6

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification AB

C_N 0.3 Poorly populated
C_dens 0.17 Very loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.6 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 3319 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age cluster (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Metal-poor Intermediate age

Palma et al. (2025)
Classified as optical pair (not dynamically associated) P175, along with Theia_3666.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for Theia 3319 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–	209.183	-63.291	0.5	-6.686	-3.213	0.391
Cavallo et al.	2024	209.37	-63.202	0.496	–	–	–
Hunt & Reffert	2023	209.16	-63.315	0.494	-6.675	-3.199	0.386

💡 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–	1.62	1.24	0.46	177	-0.740	–	–	–
Cavallo et al.	2024	1.34	1.51	–	166	-0.740	–	–	–
Hunt & Reffert	2023	1.90	0.97	0.46	188	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 2457	40.0	209.73	-63.17	0.51	-6.66	-3.28	–	0.25

💡 Note: The % column shows the percentage of members that Theia 3319 shares with each listed object.

Visualization

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