Theia 824

0.45 UTI

0.75

C_N

0.48

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 111

Stellar density (N₅₀/rad) 2.4 [N/pc²]

C3 classification AA

C_N 0.75 Rich
C_dens 0.48 Loose
C_C3 1.0 Very high quality
C_lit 0.0 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 824 is a rich, loose object of very high C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a significant percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Intermediate age

Data

🔍 Search references for Theia 824 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–	346.904	45.45	2.039	-0.778	-3.313	-13.758
He et al.	2022	346.808	45.463	2.062	-0.737	-3.433	–
Kounkel & Covey	2019	344.786	44.121	2.223	–	–	-1.161

💡 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–	0.45	0.295	–	244	–	–	–	–
He et al.	2022	–	0.15	–	18	–	–	–	–
Kounkel & Covey	2019	0.45	0.44	–	469	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 100	58.6	346.9	45.93	2.04	-0.81	-3.03	-12.98	0.45
OCSN 35	27.9	347.01	45.29	2.07	-0.72	-3.54	-16.54	0.02

💡 Note: The % column shows the percentage of members that Theia 824 shares with each listed object.

Visualization

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