Theia 2493

0.02 UTI

0.36

C_N

0.56

C_dens

0.38

C_C3

0.25

C_lit

0.06

C_dup

N₅₀ (P>50% members) 36

Stellar density (N₅₀/rad) 2.8 [N/pc²]

C3 classification BC

C_N 0.36 Poorly populated
C_dens 0.56 Moderately dense
C_C3 0.38 Low quality
C_lit 0.25 Poorly studied
C_dup 0.06 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 2493 is a poorly populated, moderately dense object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (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 2493 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–	61.693	48.858	0.423	0.392	-0.984	-48.044
Zhang et al.	2024	61.705	48.842	–	–	–	–
Hunt & Reffert	2024	61.705	48.842	0.426	0.369	-0.995	–
Cavallo et al.	2024	61.569	48.85	0.423	–	–	–
Hunt & Reffert	2023	61.705	48.842	0.426	0.369	-0.995	–

💡 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–	2.32	2.26	1.89	172	0.141	266	–	–
Zhang et al.	2024	–	–	–	–	-0.309⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	266⁽¹⁾	–	–
Cavallo et al.	2024	2.42	2.21	–	229	0.590	–	–	–
Hunt & Reffert	2023	2.22	2.31	1.89	114	–	–	–	–

(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 1381	94.4	61.69	48.87	0.43	0.39	-0.99	-48.04	0.25

💡 Note: The % column shows the percentage of members that Theia 2493 shares with each listed object.

Visualization

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