Theia 69

0.42 UTI

0.33

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 33

Stellar density (N₅₀/rad) 5.6 [N/pc²]

C3 classification BA

C_N 0.33 Poorly populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Theia 69 is a poorly populated, very dense object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Very close Low extinction Low mass Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.97 (50th percentile).

Data

🔍 Search references for Theia 69 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–	102.359	-15.135	5.895	0.158	-5.517	21.388
Swiggum et al.	2024	102.282	-15.096	5.875	0.119	-5.383	21.024
Cavallo et al.	2024	102.245	-15.411	5.885	–	–	–
Hunt & Reffert	2023	102.282	-15.096	5.875	0.119	-5.383	19.983
Kounkel & Covey	2019	102.672	-14.176	5.196	–	–	-4.191

💡 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–	0.17	0.2	0.46	24	0.120	28	–	–
Swiggum et al.	2024	0.17	–	–	16	–	28	–	–
Cavallo et al.	2024	0.17	0.79	–	39	0.120	–	–	–
Hunt & Reffert	2023	0.17	0.16	0.46	16	–	–	–	–
Kounkel & Covey	2019	0.19	0.20	–	31	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 1181	72.7	102.29	-15.07	5.94	0.12	-5.65	21.03	0.03

💡 Note: The % column shows the percentage of members that Theia 69 shares with each listed object.

Visualization

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