Theia 1934

0.08 UTI

0.41

C_N

0.58

C_dens

0.75

C_C3

0.03

C_lit

0.22

C_dup

N_m (P>50%) 41

Core radius and density 1.1 [pc], 2.9 [pc^-2]

C3 classification AB

C_N 0.41 Poorly populated
C_dens 0.58 Moderately dense
C_C3 0.75 High quality
C_lit 0.03 Rarely studied
C_dup 0.22 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Theia 1934 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is 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 Low extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for Theia 1934 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	99999–	196.383	-56.883	0.846	-6.254	-0.812	-2.711
Hunt & Reffert	2024	196.386	-56.855	0.846	-6.281	-0.845	-3.617
Cavallo et al.	2024	196.252	-57.134	0.849	–	–	–
Hunt & Reffert	2023	196.386	-56.855	0.846	-6.281	-0.845	-3.617

💡 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]	B_frac	BSS
UCC	99999–	1.14	0.75	1.25	16	-0.310	272	–	–
Hunt & Reffert	2024	1.14	0.75	1.25	16	–	272⁽¹⁾	–	–
Cavallo et al.	2024	1.15	0.86	–	9	-0.310	–	–	–
Hunt & Reffert	2023	1.14	0.75	1.25	16	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 27	78.0	196.26	-57.03	0.86	-6.23	-0.84	-2.71	0.18
OC 0591	41.5	196.33	-56.88	0.85	-6.25	-0.78	-10.22	0.21
CWWDL 14492	31.7	196.14	-57.16	0.86	-6.2	-0.86	-2.31	0.04

💡 Note: The % column shows the percentage of members that Theia 1934 shares with each listed object.

Visualization

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