UBC 624

0.19 UTI

0.0

C_N

0.08

C_dens

0.25

C_C3

0.31

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 21

Radius (P>50% members) 8.8 [arcmin]

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.25 Low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 624 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It is poorly studied in the literature.

⚠️ 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 Low extinction Near-solar metallicity Old

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

Data

🔍 Search references for UBC 624 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	–	119.268	8.001	0.352	-0.879	-1.062	50.19
Li et al.	2025	119.227	7.984	0.406	-0.838	-1.086	–
Almeida et al.	2025	119.236	8.042	–	–	–	–
Dias et al.	2021	119.236	8.042	0.354	-0.909	-1.02	45.923
Cantat-Gaudin et al.	2020	119.227	7.984	0.406	-0.838	-1.086	–
Castro-Ginard et al.	2020	119.226	8.02	0.41	-0.836	-1.122	–

💡 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]	Bfr	BSS
Li et al.	2025	2.86	0.06	–	3652	-0.143	–	–	–
Almeida et al.	2025	2.54	0.47	–	1875	–	408	–	–
Dias et al.	2021	2.54	0.47	–	1875	-0.248	–	–	–
Cantat-Gaudin et al.	2020	2.56	0.24	–	1995	–	–	–	–

Visualization

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