UBC 1390

0.22 UTI

0.35

C_N

0.24

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 35

Core radius and density 1.7 [pc], 1.2 [pc^-2]

C3 classification CB

C_N 0.35 Poorly populated
C_dens 0.24 Very loose
C_C3 0.38 Low 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 1390 is a poorly populated, very loose object of low 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, young 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 Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for UBC 1390 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–	115.008	-25.545	0.29	-2.824	3.472	–
Hunt & Reffert	2024	114.998	-25.548	0.297	-2.804	3.481	–
Cavallo et al.	2024	115.067	-25.552	0.296	–	–	–
Hunt & Reffert	2023	114.998	-25.548	0.297	-2.804	3.481	–
Castro-Ginard et al.	2022	115.05	-25.55	0.29	-2.82	3.47	–

💡 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–	3.29	1.14	0.92	28	0.250	143	–	–
Hunt & Reffert	2024	3.29	1.14	0.92	30	–	143⁽¹⁾	–	–
Cavallo et al.	2024	3.19	1.17	–	25	0.250	–	–	–
Hunt & Reffert	2023	3.29	1.14	0.92	30	–	–	–	–
Castro-Ginard et al.	2022	4.02	0.87	–	13	–	–	–	–

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

Visualization

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