Theia 1844

0.03 UTI

0.32

C_N

1.0

C_dens

0.5

C_C3

0.0

C_lit

0.09

C_dup

C3 classification BB

Number of members (P>50%) 32

Radius (P>50% members) 2.5 [arcmin]

C_N 0.32 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.09 Very likely duplicate

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

Overview

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Theia 1844 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near 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.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 1844 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	–	163.653	-60.54	0.368	-7.374	2.322	-5.258
Hunt & Reffert	2024	163.639	-60.549	0.366	-7.372	2.322	-5.264
Cavallo et al.	2024	163.702	-60.543	0.365	–	–	–
Hunt & Reffert	2023	163.639	-60.549	0.366	-7.372	2.322	-5.264

💡 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	–	–	–	–	–	327*	–	–
Cavallo et al.	2024	2.30	1.43	–	72	-0.070	–	–	–
Hunt & Reffert	2023	2.48	1.19	0.67	62	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 1489	90.6	163.66	-60.54	0.37	-7.37	2.32	-5.26	0.46

💡 Note: The % column shows the percentage of members that Theia 1844 shares with each listed object.

Visualization

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