Theia 3740

0.01 UTI

0.56

C_N

0.14

C_dens

1.0

C_C3

0.03

C_lit

0.02

C_dup

N_m (P>50%) 62

Core radius and density 3.2 [pc], 0.7 [pc^-2]

C3 classification AA

C_N 0.56 Moderately populated
C_dens 0.14 Very loose
C_C3 1.0 Very high quality
C_lit 0.03 Rarely studied
C_dup 0.02 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 3740 is a moderately populated, very loose object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age 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 Near-solar metallicity Intermediate age

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 3740 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–	101.174	-24.292	0.962	-1.522	2.461	36.399
Hunt & Reffert	2024	101.253	-24.264	0.955	-1.512	2.466	36.295
Cavallo et al.	2024	101.172	-24.309	0.956	–	–	–
Hunt & Reffert	2023	101.253	-24.264	0.955	-1.512	2.466	36.295

💡 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–	0.98	0.12	0.37	676	0.040	91	–	–
Hunt & Reffert	2024	0.98	0.12	0.37	676	–	91⁽¹⁾	–	–
Cavallo et al.	2024	1.04	0.33	–	316	0.040	–	–	–
Hunt & Reffert	2023	0.98	0.12	0.37	676	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HXHWL 69	98.4	101.15	-24.3	0.96	-1.52	2.46	36.01	0.34
CWNU 48	9.7	100.27	-23.83	0.97	-1.39	2.39	30.36	0.04

💡 Note: The % column shows the percentage of members that Theia 3740 shares with each listed object.

Visualization

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