Theia 2254

0.04 UTI

0.3

C_N

0.26

C_dens

0.75

C_C3

0.03

C_lit

0.13

C_dup

N_m (P>50%) 30

Core radius and density 1.7 [pc], 1.3 [pc^-2]

C3 classification AB

C_N 0.3 Poorly populated
C_dens 0.26 Loose
C_C3 0.75 High quality
C_lit 0.03 Rarely studied
C_dup 0.13 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 2254 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, intermediate-age 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 Moderate extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for Theia 2254 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–	34.325	60.267	0.653	-0.93	0.104	34.063
Hunt & Reffert	2024	34.31	60.234	0.644	-0.904	0.113	34.064
Cavallo et al.	2024	34.354	60.259	0.648	–	–	–
Hunt & Reffert	2023	34.31	60.234	0.644	-0.904	0.113	34.064

💡 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–	1.46	1.88	0.52	108	0.690	180	–	–
Hunt & Reffert	2024	1.46	1.88	0.52	108	–	180⁽¹⁾	–	–
Cavallo et al.	2024	1.67	2.10	–	54	0.690	–	–	–
Hunt & Reffert	2023	1.46	1.88	0.52	108	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HXHWL 63	86.7	34.33	60.27	0.64	-0.89	0.11	34.06	0.32

💡 Note: The % column shows the percentage of members that Theia 2254 shares with each listed object.

Visualization

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