UBC 109

0.05 UTI

0.8

C_N

0.71

C_dens

1.0

C_C3

0.0

C_lit

0.1

C_dup

N_m (P>50%) 242

Core radius and density 2.3 [pc], 3.6 [pc^-2]

C3 classification AA

C_N 0.8 Rich
C_dens 0.71 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.1 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 109 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 6 years.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Intermediate age

Castro-Ginard et al. (2020)
Coincidence with Sim et al. (2019, J. Korean Astron. Soc., 52, 145) or Liu & Pang (2019ApJS..245...32L), see Sect. 4.1.5.

Data

🔍 Search references for UBC 109 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–	281.85	-5.247	0.477	0.422	-2.15	13.429
Castro-Ginard et al.	2020	281.852	-5.255	0.471	0.407	-2.119	–

💡 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–	1.78	2.35	–	617	–	–	–	–
Kounkel et al.	2020	1.78	2.35	–	617	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 1235	90.1	281.85	-5.25	0.48	0.42	-2.15	13.43	0.58
CWWDL 980	43.4	281.84	-5.23	0.48	0.39	-2.17	13.0	0.03

💡 Note: The % column shows the percentage of members that UBC 109 shares with each listed object.

Visualization

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