Theia 361

0.01 UTI

0.0

C_N

1.0

C_dens

0.62

C_C3

0.0

C_lit

0.04

C_dup

C3 classification CA

Number of members (P>50%) 22

Radius (P>50% members) 5.4 [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 0.04 Very likely duplicate

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

Overview

Theia 361 is a sparse, very dense object of intermediate C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as an old 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.

Close Low extinction Old

Hunt & Reffert (2024): Classified as a moving group.

Data

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	107.274	-7.223	1.167	-0.919	-1.162	6.202
Hunt & Reffert	2023	107.259	-7.252	1.372	-0.907	-1.04	1.578

💡 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	2023	0.69	0.26	0.28	4121	–	–	–	–

💡 Note: The parameters are sometimes transformed from their original values to match the format of the columns shown here, see FAQ. The columns DAv, Bfr, BSS correspond to differential extinction, binary fraction, and blue stragglers, respectively. BSS values can be listed as fractions or integers.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FOF 2302	96.0	107.26	-7.2	1.14	-0.9	-1.2	3.48	0.5
CWWDL 14377	84.0	107.26	-7.19	1.14	-0.89	-1.2	1.22	0.01
OC 0370	80.0	107.27	-7.19	1.14	-0.89	-1.19	1.12	0.0

💡 Note: The % column shows the percentage of members that Theia 361 shares with each listed object.

Visualization

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💡 Note: How are the galactocentric plots generated? See FAQ.