UBC 433

0.42 UTI

0.52

C_N

0.21

C_dens

0.75

C_C3

0.32

C_lit

1.0

C_dup

N_m (P>50%) 53

Core radius and density 1.6 [pc], 1.0 [pc^-2]

C3 classification AB

C_N 0.52 Moderately populated
C_dens 0.21 Very loose
C_C3 0.75 High quality
C_lit 0.32 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 433 is a moderately populated, very loose object of 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, old cluster (see Parameters). It is poorly studied in the literature.

Distant Moderate extinction Near-solar metallicity Old

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.85 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.85 (50th percentile).

Data

🔍 Search references for UBC 433 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–	87.694	28.735	0.224	0.241	-0.192	3.804
Li et al.	2025	87.696	28.724	0.183	0.3	-0.202	–
Hu & Soubiran	2025	87.685	28.733	–	–	–	–
Almeida et al.	2025	87.707	28.714	–	–	–	–
Hunt & Reffert	2024	87.694	28.741	0.227	0.233	-0.197	5.695
Cavallo et al.	2024	87.685	28.733	0.226	–	–	–
Hunt & Reffert	2023	87.694	28.741	0.227	0.233	-0.197	5.695
Almeida et al.	2023	87.711	28.71	–	–	–	–
Jadhav & Subramaniam	2021	87.696	28.724	–	–	–	–
Dias et al.	2021	87.707	28.714	0.181	0.298	-0.231	–
Cantat-Gaudin et al.	2020	87.696	28.724	0.183	0.3	-0.202	–
Castro-Ginard et al.	2020	87.702	28.711	0.187	0.299	-0.203	–

💡 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–	4.37	1.785	1.95	1208	-0.351	578	0.88	0
Li et al.	2025	4.49	1.89	–	1034	-0.241	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.410⁽⁵⁾	–	–	–
Almeida et al.	2025	4.61	1.81	–	1208	–	838	–	–
Hunt & Reffert	2024	3.97	1.76	1.95	830	–	511⁽¹⁾	–	–
Cavallo et al.	2024	4.25	1.51	–	1738	-0.370	–	–	–
Hunt & Reffert	2023	3.97	1.76	1.95	830	–	–	–	–
Almeida et al.	2023	4.05	1.86	–	1276	-0.306	646⁽¹⁾	0.88	–
Jadhav & Subramaniam	2021	4.79	1.00	–	1995	–	352	–	0⁽¹⁾
Dias et al.	2021	4.61	1.81	–	1208	-0.351	–	–	–
Cantat-Gaudin et al.	2020	4.79	1.00	–	1995	–	–	–	–
Kounkel et al.	2020	3.79	2.47	–	479	–	–	–	–

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

Visualization

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