UBC 1146

0.33 UTI

0.58

C_N

0.13

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 66

Core radius and density 3.8 [pc], 0.6 [pc^-2]

C3 classification AB

C_N 0.58 Moderately populated
C_dens 0.13 Very loose
C_C3 0.75 High quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

UBC 1146 is a moderately populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.95 (50th percentile).

Data

🔍 Search references for UBC 1146 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	324.422	55.589	0.266	-4.345	-4.694	-59.692
Hu & Soubiran	2025	324.435	55.582	–	–	–	–
Hunt & Reffert	2024	324.378	55.59	0.281	-4.34	-4.693	-60.039
Cavallo et al.	2024	324.435	55.582	0.272	–	–	–
Hunt & Reffert	2023	324.378	55.59	0.281	-4.34	-4.693	-60.039
Castro-Ginard et al.	2022	324.47	55.59	0.26	-4.35	-4.69	-63.01

💡 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–	3.35	2.725	1.55	658	-0.185	733	–	–
Hu & Soubiran	2025	–	–	–	–	-0.160⁽⁵⁾	–	–	–
Hunt & Reffert	2024	3.35	2.77	1.55	496	–	733⁽¹⁾	–	–
Cavallo et al.	2024	2.78	2.68	–	1549	-0.210	–	–	–
Hunt & Reffert	2023	3.35	2.77	1.55	497	–	–	–	–
Castro-Ginard et al.	2022	4.06	2.42	–	820	–	–	–	–

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

Visualization

ℹ️

1 2