UBC 499

0.55 UTI

0.38

C_N

0.62

C_dens

0.75

C_C3

0.5

C_lit

1.0

C_dup

N₅₀ (P>50% members) 38

Stellar density (N₅₀/rad) 3.1 [N/pc²]

C3 classification AB

C_N 0.38 Poorly populated
C_dens 0.62 Moderately dense
C_C3 0.75 High 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 499 is a poorly populated, moderately dense object of high 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, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for UBC 499 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–	158.645	-59.761	0.407	-6.528	2.807	–
Li et al.	2025	158.639	-59.752	0.396	-6.543	2.81	–
Almeida et al.	2025	158.637	-59.749	–	–	–	–
Hunt & Reffert	2024	158.665	-59.767	0.418	-6.535	2.804	–
Cavallo et al.	2024	158.67	-59.773	0.418	–	–	–
Hunt & Reffert	2023	158.665	-59.767	0.418	-6.535	2.804	–
Almeida et al.	2023	158.659	-59.743	–	–	–	–
Dias et al.	2021	158.637	-59.749	0.391	-6.525	2.817	–
Cantat-Gaudin et al.	2020	158.639	-59.752	0.396	-6.543	2.81	–
Castro-Ginard et al.	2020	158.607	-59.752	0.399	-6.54	2.813	–

💡 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–	2.28	1.06	0.63	35	0.035	314	0.56	–
Li et al.	2025	2.15	0.66	–	517	0.058	–	–	–
Almeida et al.	2025	2.39	1.06	–	35	–	314	–	–
Hunt & Reffert	2024	–	–	–	–	–	258⁽¹⁾	–	–
Cavallo et al.	2024	2.13	1.19	–	22	-0.260	–	–	–
Hunt & Reffert	2023	2.22	0.81	0.63	122	–	–	–	–
Almeida et al.	2023	2.28	1.31	–	23	0.013	773⁽¹⁾	0.56	–
Dias et al.	2021	2.39	1.06	–	35	0.348	–	–	–
Cantat-Gaudin et al.	2020	2.36	0.76	–	52	–	–	–	–

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

Visualization

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