UBC 475

0.59 UTI

0.46

C_N

1.0

C_dens

0.5

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 46

Stellar density (N₅₀/rad) 17.4 [N/pc²]

C3 classification BB

C_N 0.46 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate 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 475 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 475 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–	123.894	-33.894	0.483	-2.897	2.903	31.767
Li et al.	2025	123.892	-33.904	0.488	-2.879	2.907	–
Almeida et al.	2025	123.893	-33.909	–	–	–	–
Hunt & Reffert	2024	123.876	-33.9	0.487	-2.898	2.913	31.763
Cavallo et al.	2024	123.903	-33.894	0.489	–	–	–
Hunt & Reffert	2023	123.876	-33.9	0.487	-2.898	2.913	31.763
Almeida et al.	2023	123.892	-33.912	–	–	–	–
Dias et al.	2021	123.893	-33.909	0.464	-2.887	2.896	–
Cantat-Gaudin et al.	2020	123.892	-33.904	0.488	-2.879	2.907	–
Castro-Ginard et al.	2020	123.886	-33.899	0.486	-2.87	2.907	–

💡 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–	1.92	0.78	1.15	87	-0.044	220	0.43	–
Li et al.	2025	1.67	0.66	–	155	-0.242	–	–	–
Almeida et al.	2025	1.92	0.78	–	80	–	150	–	–
Hunt & Reffert	2024	–	–	–	–	–	220⁽¹⁾	–	–
Cavallo et al.	2024	1.85	0.92	–	87	-0.030	–	–	–
Hunt & Reffert	2023	1.89	0.42	1.15	146	–	–	–	–
Almeida et al.	2023	1.96	0.82	–	129	-0.058	241⁽¹⁾	0.43	–
Dias et al.	2021	1.92	0.78	–	80	0.076	–	–	–
Cantat-Gaudin et al.	2020	2.00	0.65	–	40	–	–	–	–

(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 8942	78.3	123.89	-33.9	0.49	-2.91	2.9	31.77	0.0

💡 Note: The % column shows the percentage of members that UBC 475 shares with each listed object.

Visualization

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