Theia 123

0.00 UTI

0.0

C_N

1.0

C_dens

0.62

C_C3

0.0

C_lit

0.0

C_dup

C3 classification CA

Number of members (P>50%) 24

Radius (P>50% members) 9.1 [arcmin]

C_N 0.0 Sparse
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

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

Overview

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Theia 123 is a sparse, very dense object of intermediate C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported 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.

Very close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 123 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	–	43.342	68.859	2.269	1.38	-7.934	-5.675
Hunt & Reffert	2024	43.369	68.84	2.283	1.463	-7.911	-7.683
Cavallo et al.	2024	42.928	68.862	2.281	–	–	–
Hunt & Reffert	2023	43.369	68.84	2.283	1.463	-7.911	-7.683

💡 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	–	–	–	–	–	275*	–	–
Cavallo et al.	2024	0.46	1.30	–	46	0.070	–	–	–
Hunt & Reffert	2023	0.42	1.21	2.08	125	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 2428	100.0	43.09	68.86	2.28	1.46	-7.93	-6.86	0.5
OCSN 46	100.0	43.11	68.88	2.28	1.46	-7.95	-6.04	0.0
OC 0242	32.0	42.42	68.98	2.28	1.56	-7.98	-7.13	0.38

💡 Note: The % column shows the percentage of members that Theia 123 shares with each listed object.

Visualization

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