Theia 1851

0.25 UTI

0.25

C_N

0.77

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 25

Radius (P>50% members) 2.0 [arcmin]

C_N 0.25 Poorly populated
C_dens 0.77 Dense
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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Theia 1851 is a poorly populated, dense object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, intermediate-age cluster (see Parameters). It was recently reported in the literature.

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

Distant Moderate extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 1851 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	–	7.511	62.843	0.229	-2.026	-0.423	-72.101
Hunt & Reffert	2024	7.503	62.834	0.221	-2.005	-0.44	–
Cavallo et al.	2024	7.569	62.838	0.221	–	–	–
Hunt & Reffert	2023	7.503	62.834	0.221	-2.005	-0.44	–

💡 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	–	–	–	–	–	245*	–	–
Cavallo et al.	2024	3.85	2.00	–	224	0.900	–	–	–
Hunt & Reffert	2023	4.24	2.80	2.06	44	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3772	84.0	7.5	62.84	0.24	-2.03	-0.42	-72.1	0.04

💡 Note: The % column shows the percentage of members that Theia 1851 shares with each listed object.

Visualization

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