UBC 655

0.29 UTI

0.0

C_N

0.45

C_dens

0.5

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 2.2 [N/pc²]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.45 Loose
C_C3 0.5 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 655 is a sparse, loose object of intermediate 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, very young cluster (see Parameters). It is poorly studied in the literature.

Distant Moderate extinction Near-solar metallicity Very young

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

Data

🔍 Search references for UBC 655 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–	158.033	-62.94	0.276	-5.818	2.752	-1.713
Almeida et al.	2025	158.065	-62.905	–	–	–	–
Dias et al.	2021	158.065	-62.905	0.288	-5.754	2.712	–
Cantat-Gaudin et al.	2020	158.084	-62.941	0.282	-5.786	2.739	–
Castro-Ginard et al.	2020	158.064	-62.918	0.278	-5.784	2.733	–

💡 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–	3.45	1.61	–	12	-0.034	132	–	–
Almeida et al.	2025	3.45	1.61	–	12	–	132	–	–
Dias et al.	2021	3.45	1.61	–	12	-0.034	–	–	–

Visualization

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