Theia 974

0.02 UTI

0.44

C_N

1.0

C_dens

0.62

C_C3

0.25

C_lit

0.04

C_dup

C3 classification CA

Number of members (P>50%) 44

Radius (P>50% members) 6.4 [arcmin]

C_N 0.44 Poorly populated
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 0.04 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Theia 974 is a poorly populated, very dense object of intermediate 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, young cluster (see Parameters). It is poorly studied in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 974 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	–	4.079	64.976	1.333	-0.9	0.62	-3.658
Hunt & Reffert	2024	4.076	64.966	1.343	-0.89	0.643	-3.403
Cavallo et al.	2024	4.154	64.949	1.341	–	–	–
Hunt & Reffert	2023	4.076	64.966	1.343	-0.89	0.643	-3.403
He et al.	2022	4.067	64.975	1.333	-0.904	0.607	–

💡 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]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	151*	–	–
Cavallo et al.	2024	0.81	1.94	–	54	0.030	–	–	–
Hunt & Reffert	2023	0.70	1.72	1.29	119	–	–	–	–
He et al.	2022	–	2.00	–	50	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0225	95.5	4.1	64.98	1.33	-0.9	0.61	-3.66	0.41

💡 Note: The % column shows the percentage of members that Theia 974 shares with each listed object.

Visualization

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