UBC 1033

0.58 UTI

0.3

C_N

1.0

C_dens

1.0

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 5.5 [N/pc²]

C3 classification AA

C_N 0.3 Poorly populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.3 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 1033 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the distance parameter (see Parameters). It is poorly studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as primordial binary cluster 166 along with HSC_250.

Palma et al. (2025)
Part of multiple system G156, along with HSC_250, HSC_249 and HSC_245.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1033 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–	278.108	-6.869	0.437	-0.003	-2.527	–
Hunt & Reffert	2024	278.089	-6.874	0.447	0.018	-2.507	–
Cavallo et al.	2024	278.131	-6.861	0.446	–	–	–
Hunt & Reffert	2023	278.089	-6.874	0.447	0.018	-2.507	–
Castro-Ginard et al.	2022	278.12	-6.87	0.43	0.02	-2.5	–

💡 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–	2.31	2.755	1.41	27	-0.240	437	–	–
Liu et al.	2025	7.66	1.07	–	26	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	437⁽¹⁾	–	–
Cavallo et al.	2024	1.86	3.06	–	26	-0.240	–	–	–
Hunt & Reffert	2023	2.09	2.76	1.41	95	–	–	–	–
Castro-Ginard et al.	2022	2.53	2.75	–	28	–	–	–	–

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

Visualization

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