Theia 6599

0.02 UTI

0.47

C_N

0.16

C_dens

0.62

C_C3

0.03

C_lit

0.08

C_dup

N_m (P>50%) 47

Core radius and density 2.3 [pc], 0.8 [pc^-2]

C3 classification AC

C_N 0.47 Poorly populated
C_dens 0.16 Very loose
C_C3 0.62 Intermediate 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

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Theia 6599 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, 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 High extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.62 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.62 (50th percentile).

Data

🔍 Search references for Theia 6599 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–	20.816	65.385	0.804	3.541	-1.158	-41.725
Hunt & Reffert	2024	20.941	65.419	0.802	3.569	-1.16	-36.525
Cavallo et al.	2024	20.849	65.37	0.804	–	–	–
Hunt & Reffert	2023	20.941	65.419	0.802	3.569	-1.16	-36.525

💡 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–	1.2	3.08	2.54	121	0.700	263	–	–
Hunt & Reffert	2024	1.20	3.08	2.54	121	–	263⁽¹⁾	–	–
Cavallo et al.	2024	1.32	2.45	–	457	0.700	–	–	–
Hunt & Reffert	2023	1.20	3.08	2.54	121	–	–	–	–

(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 55	91.5	20.82	65.36	0.8	3.54	-1.16	-40.77	0.06
OC 0234	83.0	20.87	65.39	0.8	3.52	-1.16	-40.78	0.26

💡 Note: The % column shows the percentage of members that Theia 6599 shares with each listed object.

Visualization

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