UBC 1165

0.19 UTI

0.0

C_N

0.08

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 2.5 [pc], 0.4 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.75 High quality
C_lit 0.06 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 1165 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 metal-rich, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely 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.

Distant Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.48 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.48 (50th percentile).

Data

🔍 Search references for UBC 1165 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–	336.61	56.442	0.208	-3.484	-2.666	–
Hunt & Reffert	2024	336.609	56.432	0.22	-3.498	-2.65	–
Cavallo et al.	2024	336.499	56.475	0.221	–	–	–
Hunt & Reffert	2023	336.609	56.432	0.22	-3.498	-2.65	–
Castro-Ginard et al.	2022	336.54	56.51	0.22	-3.48	-2.64	-77.25

💡 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–	4.11	2.04	2.43	25	0.790	319	–	–
Hunt & Reffert	2024	4.11	2.11	2.43	25	–	319⁽¹⁾	–	–
Cavallo et al.	2024	4.11	1.97	–	129	0.790	–	–	–
Hunt & Reffert	2023	4.11	2.11	2.43	25	–	–	–	–
Castro-Ginard et al.	2022	4.46	1.61	–	17	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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