UBC 290

0.76 UTI

0.82

C_N

1.0

C_dens

1.0

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 282

Stellar density (N₅₀/rad) 12.1 [N/pc²]

C3 classification AA

C_N 0.82 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 290 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Data

🔍 Search references for UBC 290 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–	191.89	-59.375	0.608	-5.933	-0.246	-23.498
Li et al.	2025	191.949	-59.381	0.595	-5.892	-0.293	–
Almeida et al.	2025	191.912	-59.358	–	–	–	–
Hunt & Reffert	2024	191.742	-59.376	0.602	-5.952	-0.213	-26.743
Cavallo et al.	2024	191.731	-59.365	0.606	–	–	–
Hunt & Reffert	2023	191.742	-59.376	0.602	-5.952	-0.213	-26.743
Almeida et al.	2023	191.927	-59.359	–	–	–	–
Dias et al.	2021	191.912	-59.358	0.589	-5.897	-0.287	-23.607
Cantat-Gaudin et al.	2020	191.949	-59.381	0.595	-5.892	-0.293	–
Castro-Ginard et al.	2020	191.95	-59.373	0.594	-5.893	-0.293	–

💡 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–	1.54	0.8	0.66	170	0.004	1125	0.6	–
Li et al.	2025	1.40	0.75	–	186	-0.135	–	–	–
Almeida et al.	2025	1.53	0.85	–	170	–	616	–	–
Hunt & Reffert	2024	–	–	–	–	–	1353⁽¹⁾	–	–
Cavallo et al.	2024	1.54	0.80	–	166	0.160	–	–	–
Hunt & Reffert	2023	1.55	0.66	0.66	140	–	–	–	–
Almeida et al.	2023	1.58	0.99	–	104	-0.124	1125⁽¹⁾	0.60	–
Dias et al.	2021	1.53	0.85	–	170	0.132	–	–	–
Cantat-Gaudin et al.	2020	1.61	0.62	–	191	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14045	19.1	191.79	-59.39	0.61	-5.96	-0.23	-23.55	0.0
CWWDL 14223	14.5	191.94	-59.37	0.63	-5.93	-0.28	-19.79	0.0

💡 Note: The % column shows the percentage of members that UBC 290 shares with each listed object.

Visualization

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