UBC 627

0.16 UTI

0.0

C_N

0.07

C_dens

0.25

C_C3

0.25

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 22

Radius (P>50% members) 9.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.07 Very loose
C_C3 0.25 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

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

Overview

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UBC 627 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 627 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	–	120.009	1.469	0.343	-1.966	0.256	54.914
Almeida et al.	2025	119.992	1.471	–	–	–	–
Dias et al.	2021	119.992	1.471	0.377	-1.961	0.27	88.773
Cantat-Gaudin et al.	2020	120.007	1.469	0.382	-1.976	0.339	–
Castro-Ginard et al.	2020	120.006	1.452	0.385	-1.966	0.296	–

💡 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
Almeida et al.	2025	2.66	0.42	–	2518	–	318	–	–
Dias et al.	2021	2.66	0.42	–	2518	-0.312	–	–	–
Cantat-Gaudin et al.	2020	2.65	0.12	–	2089	–	–	–	–

Visualization

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