UBC 1529

0.42 UTI

0.57

C_N

0.4

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 65

Core radius and density 2.5 [pc], 2.0 [pc^-2]

C3 classification AA

C_N 0.57 Moderately populated
C_dens 0.4 Loose
C_C3 1.0 Very high quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 1529 is a moderately populated, loose object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Distant High extinction Massive Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair P180, along with UBC_1532.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.12 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.12 (50th percentile).

Data

🔍 Search references for UBC 1529 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–	221.433	-61.089	0.296	-3.96	-2.976	-41.928
Hunt & Reffert	2024	221.43	-61.07	0.298	-3.958	-2.965	-15.632
Cavallo et al.	2024	221.417	-61.089	0.3	–	–	–
Hunt & Reffert	2023	221.43	-61.07	0.298	-3.958	-2.965	-15.632
Castro-Ginard et al.	2022	221.45	-61.09	0.29	-3.95	-2.99	–

💡 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–	3.14	3.94	2.43	174	-0.030	1270	–	–
Hunt & Reffert	2024	3.14	3.96	2.43	90	–	1270⁽¹⁾	–	–
Cavallo et al.	2024	2.44	3.92	–	257	-0.030	–	–	–
Hunt & Reffert	2023	3.14	3.96	2.43	90	–	–	–	–
Castro-Ginard et al.	2022	3.25	3.02	–	272	–	–	–	–

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

Visualization

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