UBC 419

0.22 UTI

0.0

C_N

0.01

C_dens

0.75

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 3.1 [pc], 0.07 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.75 High quality
C_lit 0.16 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 419 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below 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 absorption, age, and metallicity parameters (see Parameters). It is rarely studied in the literature.

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

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for UBC 419 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–	34.605	58.981	0.4	-0.922	-0.66	–
Li et al.	2025	34.694	58.924	0.395	-0.921	-0.586	–
Hunt & Reffert	2024	34.891	58.883	0.402	-0.861	-0.691	-54.157
Cavallo et al.	2024	34.764	59.032	0.402	–	–	–
Hunt & Reffert	2023	34.891	58.883	0.402	-0.861	-0.691	-54.157
Cantat-Gaudin et al.	2020	34.694	58.924	0.395	-0.921	-0.586	–
Castro-Ginard et al.	2020	34.692	58.931	0.396	-0.908	-0.594	–

💡 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–	2.315	1.92	2.415	66	0.268	445	–	–
Li et al.	2025	1.02	0.24	–	2018	-0.165	–	–	–
Hunt & Reffert	2024	2.29	2.04	2.41	61	–	445⁽¹⁾	–	–
Cavallo et al.	2024	2.74	1.97	–	72	0.700	–	–	–
Hunt & Reffert	2023	2.29	2.04	2.42	61	–	–	–	–
Cantat-Gaudin et al.	2020	2.34	1.22	–	200	–	–	–	–
Kounkel et al.	2020	2.78	1.87	–	44	–	–	–	–

(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 13361	4.0	34.89	58.77	0.45	-0.76	-0.7	-18.97	0.18

💡 Note: The % column shows the percentage of members that UBC 419 shares with each listed object.

Visualization

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