Theia 701

0.07 UTI

0.0

C_N

0.09

C_dens

0.12

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.6 [pc], 0.5 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.09 Very loose
C_C3 0.12 Very low quality
C_lit 0.06 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 701 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

⚠️ 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.

Very close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for Theia 701 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–	34.497	53.304	2.392	5.025	-8.696	-6.687
Zhang et al.	2024	34.72	53.316	–	–	–	–
Cavallo et al.	2024	33.965	53.053	2.477	–	–	–
Hunt & Reffert	2023	34.72	53.316	2.473	5.172	-8.622	-5.01
Kounkel & Covey	2019	32.628	53.492	2.561	–	–	-6.173

💡 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–	0.39	0.33	0.52	171	0.147	–	–	–
Zhang et al.	2024	–	–	–	–	0.025⁽¹⁾	–	–	–
Cavallo et al.	2024	0.43	0.65	–	65	0.270	–	–	–
Hunt & Reffert	2023	0.39	0.17	0.52	171	–	–	–	–
Kounkel & Covey	2019	0.39	0.33	–	349	–	–	–	–

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

Visualization

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