UBC 659

0.41 UTI

0.0

C_N

0.98

C_dens

0.38

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 4.9 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.98 Very dense
C_C3 0.38 Low quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 659 is a sparse, very dense object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Very young

Palma et al. (2025)
Part of multiple system G154, along with NGC_3590, NGC_3572, ASCC_65 and HSC_2406.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 659 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–	167.31	-60.682	0.381	-6.265	1.378	-11.66
Hunt & Reffert	2024	167.31	-60.671	0.382	-6.211	1.398	–
Celli et al.	2024	167.285	-60.687	–	–	–	–
Cavallo et al.	2024	167.293	-60.662	0.382	–	–	–
Hunt & Reffert	2023	167.31	-60.671	0.382	-6.211	1.398	–
Cantat-Gaudin et al.	2020	167.285	-60.687	0.367	-6.297	1.387	–
Castro-Ginard et al.	2020	167.228	-60.695	0.367	-6.298	1.395	–

💡 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–	2.36	1.62	0.98	19	-0.420	309	–	–
Hunt & Reffert	2024	–	–	–	–	–	408⁽¹⁾	–	–
Celli et al.	2024	–	–	–	28	–	210	–	–
Cavallo et al.	2024	2.18	1.72	–	10	-0.420	–	–	–
Hunt & Reffert	2023	3.32	1.62	0.98	8	–	–	–	–
Cantat-Gaudin et al.	2020	2.36	1.09	–	28	–	–	–	–

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

Visualization

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