Theia 339

0.13 UTI

0.6

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.28

C_dup

C3 classification AB

Number of members (P>50%) 71

Radius (P>50% members) 2.8 [arcmin]

C_N 0.6 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.28 Possibly duplicate

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

Overview

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Theia 339 is a moderately 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 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.

Data

🔍 Search references for Theia 339 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	–	213.876	-63.741	0.518	-4.695	-3.115	–
Hunt & Reffert	2024	213.87	-63.74	0.507	-4.707	-3.133	–
Cavallo et al.	2024	213.903	-63.742	0.512	–	–	–
Hunt & Reffert	2023	213.87	-63.74	0.507	-4.707	-3.133	–

💡 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	–	–	–	–	–	213*	–	–
Cavallo et al.	2024	1.63	1.11	–	229	0.050	–	–	–
Hunt & Reffert	2023	1.78	0.98	0.50	113	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HXHWL 25	71.8	213.87	-63.74	0.52	-4.72	-3.13	–	0.45

💡 Note: The % column shows the percentage of members that Theia 339 shares with each listed object.

Visualization

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