UBC 1509

0.37 UTI

0.34

C_N

0.37

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 34

Core radius and density 1.0 [pc], 1.8 [pc^-2]

C3 classification AA

C_N 0.34 Poorly populated
C_dens 0.37 Loose
C_C3 1.0 Very 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 1509 is a poorly populated, loose object of very 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.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Distant Moderate extinction Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for UBC 1509 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–	176.564	-64.098	0.274	-6.02	0.636	–
Hunt & Reffert	2024	176.567	-64.095	0.277	-6.008	0.646	–
Cavallo et al.	2024	176.578	-64.108	0.277	–	–	–
Hunt & Reffert	2023	176.567	-64.095	0.277	-6.008	0.646	–
Castro-Ginard et al.	2022	176.58	-64.1	0.28	-6.01	0.65	–

💡 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–	3.505	1.8	0.87	80	0.740	283	–	–
Hunt & Reffert	2024	3.41	1.89	0.87	80	–	283⁽¹⁾	–	–
Cavallo et al.	2024	3.60	1.26	–	245	0.740	–	–	–
Hunt & Reffert	2023	3.41	1.89	0.87	80	–	–	–	–
Castro-Ginard et al.	2022	4.00	1.71	–	16	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0573	55.9	176.54	-64.12	0.29	-6.01	0.67	–	0.05

💡 Note: The % column shows the percentage of members that UBC 1509 shares with each listed object.

Visualization

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