UBC 1148

0.24 UTI

0.34

C_N

0.21

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 34

Core radius and density 1.2 [pc], 1.1 [pc^-2]

C3 classification BB

C_N 0.34 Poorly populated
C_dens 0.21 Very loose
C_C3 0.5 Intermediate 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 1148 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster (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 High extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.18 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.18 (50th percentile).

Data

🔍 Search references for UBC 1148 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–	328.188	53.932	0.226	-2.862	-2.872	-56.45
Hunt & Reffert	2024	328.189	53.929	0.225	-2.865	-2.879	-55.56
Cavallo et al.	2024	328.189	53.931	0.223	–	–	–
Hunt & Reffert	2023	328.189	53.929	0.225	-2.865	-2.879	-55.56
Castro-Ginard et al.	2022	328.18	53.94	0.21	-2.84	-2.84	–

💡 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–	4.19	3.65	1.53	330	0.150	1081	–	–
Hunt & Reffert	2024	4.19	3.74	1.53	244	–	1081⁽¹⁾	–	–
Cavallo et al.	2024	3.21	3.56	–	417	0.150	–	–	–
Hunt & Reffert	2023	4.19	3.74	1.53	244	–	–	–	–
Castro-Ginard et al.	2022	5.46	2.83	–	676	–	–	–	–

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

Visualization

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