Theia 2728

0.01 UTI

0.0

C_N

0.15

C_dens

0.38

C_C3

0.03

C_lit

0.08

C_dup

N_m (P>50%) 23

Core radius and density 1.4 [pc], 0.8 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.15 Very loose
C_C3 0.38 Low quality
C_lit 0.03 Rarely studied
C_dup 0.08 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

Theia 2728 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, 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.

Relatively close Moderate extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.96 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.96 (50th percentile), true positive? (human-assigned).

Data

🔍 Search references for Theia 2728 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	96.697	15.22	0.815	-1.361	-0.849	23.972
Hunt & Reffert	2024	96.667	15.192	0.806	-1.373	-0.851	18.621
Cavallo et al.	2024	96.706	15.174	0.81	–	–	–
Hunt & Reffert	2023	96.667	15.192	0.806	-1.373	-0.851	18.621

💡 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–	1.17	1.12	0.83	155	0.560	112	–	–
Hunt & Reffert	2024	1.17	1.12	0.83	155	–	112⁽¹⁾	–	–
Cavallo et al.	2024	1.49	1.30	–	112	0.560	–	–	–
Hunt & Reffert	2023	1.17	1.11	0.83	155	–	–	–	–

(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 520	92.0	96.71	15.2	0.81	-1.35	-0.84	23.97	0.11

💡 Note: The % column shows the percentage of members that Theia 2728 shares with each listed object.

Visualization

ℹ️

1 2