Theia 2924

0.24 UTI

0.29

C_N

0.11

C_dens

0.75

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 29

Core radius and density 2.3 [pc], 0.5 [pc^-2]

C3 classification AB

C_N 0.29 Poorly populated
C_dens 0.11 Very loose
C_C3 0.75 High quality
C_lit 0.03 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 2924 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive (human-assigned).

Data

🔍 Search references for Theia 2924 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–	14.626	60.73	0.352	-2.524	-0.786	–
Hunt & Reffert	2024	14.624	60.733	0.358	-2.517	-0.776	–
Cavallo et al.	2024	14.88	60.882	0.36	–	–	–
Hunt & Reffert	2023	14.624	60.733	0.358	-2.517	-0.776	–

💡 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–	2.58	1.44	2.505	64	0.570	178	–	–
Hunt & Reffert	2024	2.58	1.44	2.51	63	–	178⁽¹⁾	–	–
Cavallo et al.	2024	2.90	1.31	–	100	0.570	–	–	–
Hunt & Reffert	2023	2.58	1.44	2.50	64	–	–	–	–

(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 3413	86.2	14.66	60.73	0.35	-2.53	-0.79	–	0.0

💡 Note: The % column shows the percentage of members that Theia 2924 shares with each listed object.

Visualization

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