Theia 3475

0.07 UTI

0.33

C_N

0.07

C_dens

0.38

C_C3

0.06

C_lit

0.39

C_dup

N_m (P>50%) 33

Core radius and density 3.2 [pc], 0.3 [pc^-2]

C3 classification CB

C_N 0.33 Poorly populated
C_dens 0.07 Very loose
C_C3 0.38 Low quality
C_lit 0.06 Rarely studied
C_dup 0.39 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 3475 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above 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.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.69 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.69 (50th percentile).

Data

🔍 Search references for Theia 3475 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–	93.252	24.106	0.521	0.145	-1.969	664.495
Zhang et al.	2024	93.198	24.112	–	–	–	–
Hunt & Reffert	2024	93.198	24.112	0.516	0.146	-1.996	664.493
Cavallo et al.	2024	93.21	23.9	0.516	–	–	–
Hunt & Reffert	2023	93.198	24.112	0.516	0.146	-1.996	664.493

💡 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–	1.84	1.49	2.38	145	-0.267	242	–	–
Zhang et al.	2024	–	–	–	–	-0.193⁽¹⁾	–	–	–
Hunt & Reffert	2024	1.84	1.49	2.38	145	–	242⁽¹⁾	–	–
Cavallo et al.	2024	1.86	1.56	–	182	-0.340	–	–	–
Hunt & Reffert	2023	1.84	1.49	2.38	145	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0307	60.6	93.27	24.0	0.52	0.15	-1.93	–	0.21

💡 Note: The % column shows the percentage of members that Theia 3475 shares with each listed object.

Visualization

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