Theia 1086

0.31 UTI

0.44

C_N

0.19

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 44

Core radius and density 2.5 [pc], 0.9 [pc^-2]

C3 classification AB

C_N 0.44 Poorly populated
C_dens 0.19 Very loose
C_C3 0.75 High quality
C_lit 0.1 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 1086 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

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

Close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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

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

Data

🔍 Search references for Theia 1086 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–	68.288	55.782	1.061	3.535	-3.133	-5.331
Zhang et al.	2024	68.217	55.744	–	–	–	–
Hunt & Reffert	2024	68.217	55.744	1.064	3.564	-3.141	-11.064
Cavallo et al.	2024	68.186	55.819	1.051	–	–	–
Hunt & Reffert	2023	68.217	55.744	1.064	3.564	-3.141	-11.064
Kounkel & Covey	2019	67.394	56.156	1.126	–	–	–

💡 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–	0.92	1.86	2.01	288	-0.086	135	–	–
Zhang et al.	2024	–	–	–	–	-0.361⁽¹⁾	–	–	–
Hunt & Reffert	2024	0.92	1.89	2.01	168	–	135⁽¹⁾	–	–
Cavallo et al.	2024	1.05	1.83	–	407	0.190	–	–	–
Hunt & Reffert	2023	0.92	1.89	2.01	168	–	–	–	–
Kounkel & Covey	2019	0.89	1.37	–	772	–	–	–	–

(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 3191	95.5	68.3	55.8	1.06	3.53	-3.13	-5.14	0.02

💡 Note: The % column shows the percentage of members that Theia 1086 shares with each listed object.

Visualization

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