Theia 696

0.13 UTI

0.27

C_N

0.08

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 3.4 [pc], 0.4 [pc^-2]

C3 classification DB

C_N 0.27 Poorly populated
C_dens 0.08 Very loose
C_C3 0.25 Low quality
C_lit 0.03 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 696 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a very close distance, below 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.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

⚠️ 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: 0.79 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.79 (50th percentile).

Data

🔍 Search references for Theia 696 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–	272.251	-73.605	3.376	1.427	-14.676	20.297
Cavallo et al.	2024	272.784	-73.828	3.466	–	–	–
Hunt & Reffert	2023	271.719	-73.993	3.459	1.344	-14.992	15.632
Kounkel & Covey	2019	272.758	-72.364	2.946	–	–	10.872

💡 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–	0.3	0.55	0.35	157	-0.010	–	–	–
Cavallo et al.	2024	0.30	0.55	–	76	-0.010	–	–	–
Hunt & Reffert	2023	0.28	0.11	0.35	157	–	–	–	–
Kounkel & Covey	2019	0.34	0.61	–	325	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 1180	51.9	272.05	-74.33	3.38	1.79	-14.41	20.24	0.03

💡 Note: The % column shows the percentage of members that Theia 696 shares with each listed object.

Visualization

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