Theia 3796

0.01 UTI

0.0

C_N

0.13

C_dens

0.62

C_C3

0.06

C_lit

0.04

C_dup

N_m (P>50%) 23

Core radius and density 1.4 [pc], 0.7 [pc^-2]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.13 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.06 Rarely studied
C_dup 0.04 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 3796 is a sparse, very loose object of intermediate 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, intermediate-age cluster, but with a large variance across recent sources for the age parameter (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 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 3796 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–	87.487	31.704	0.717	0.453	-3.762	-30.406
Zhang et al.	2024	87.51	31.678	–	–	–	–
Hunt & Reffert	2024	87.51	31.678	0.717	0.442	-3.771	-27.389
Cavallo et al.	2024	87.512	31.687	0.717	–	–	–
Hunt & Reffert	2023	87.51	31.678	0.717	0.442	-3.771	-27.389

💡 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–	1.32	0.51	0.615	114	-0.159	114	–	–
Zhang et al.	2024	–	–	–	–	-0.307⁽¹⁾	–	–	–
Hunt & Reffert	2024	1.32	0.51	0.62	114	–	114⁽¹⁾	–	–
Cavallo et al.	2024	1.32	0.60	–	389	-0.010	–	–	–
Hunt & Reffert	2023	1.32	0.51	0.61	114	–	–	–	–

(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 38	96.0	87.5	31.7	0.71	0.47	-3.77	-25.18	0.22

💡 Note: The % column shows the percentage of members that Theia 3796 shares with each listed object.

Visualization

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