Theia 2007

0.03 UTI

0.0

C_N

0.06

C_dens

0.38

C_C3

0.03

C_lit

0.32

C_dup

N_m (P>50%) 22

Core radius and density 2.6 [pc], 0.3 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.38 Low quality
C_lit 0.03 Rarely studied
C_dup 0.32 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 2007 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young 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 Young

Palma et al. (2025)
Classified as optical pair P99, along with CWNU_1441.

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 2007 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–	303.426	34.463	0.623	-0.877	-3.641	-36.821
Hunt & Reffert	2024	303.374	34.247	0.619	-0.856	-3.631	-36.69
Cavallo et al.	2024	303.391	34.422	0.62	–	–	–
Hunt & Reffert	2023	303.374	34.247	0.619	-0.856	-3.631	-36.69

💡 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–	1.54	1.57	1.29	36	0.420	150	–	–
Hunt & Reffert	2024	1.54	1.57	1.29	36	–	150⁽¹⁾	–	–
Cavallo et al.	2024	1.67	1.47	–	100	0.420	–	–	–
Hunt & Reffert	2023	1.54	1.57	1.29	36	–	–	–	–

(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 202	68.0	303.49	34.56	0.62	-0.84	-3.64	-24.64	0.21

💡 Note: The % column shows the percentage of members that Theia 2007 shares with each listed object.

Visualization

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