UBC 1522

0.02 UTI

0.66

C_N

1.0

C_dens

0.75

C_C3

0.31

C_lit

0.02

C_dup

C3 classification AB

Number of members (P>50%) 81

Radius (P>50% members) 3.7 [arcmin]

C_N 0.66 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.31 Poorly studied
C_dup 0.02 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 1522 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1522 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	–	198.223	-64.264	0.46	-4.347	-0.531	-18.401
Hu & Soubiran	2025	198.204	-64.259	–	–	–	–
Hunt & Reffert	2024	198.237	-64.276	0.461	-4.35	-0.541	-23.455
Cavallo et al.	2024	198.204	-64.259	0.461	–	–	–
Hunt & Reffert	2023	198.237	-64.276	0.461	-4.35	-0.541	-23.455
Castro-Ginard et al.	2022	198.19	-64.26	0.45	-4.34	-0.52	-17.69

💡 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]	Bfr	BSS
Hu & Soubiran	2025	–	–	–	–	-0.120*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	659*	–	–
Cavallo et al.	2024	1.79	1.66	–	759	0.010	–	–	–
Hunt & Reffert	2023	2.02	1.46	1.09	670	–	–	–	–
Castro-Ginard et al.	2022	2.58	1.03	–	778	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
LISC 3164	97.5	198.23	-64.26	0.46	-4.34	-0.54	-18.4	0.49
CWWDL 5475	58.0	198.22	-64.26	0.46	-4.35	-0.52	-18.4	0.0
CWNU 278	32.1	198.22	-64.26	0.45	-4.35	-0.53	-15.14	0.0

💡 Note: The % column shows the percentage of members that UBC 1522 shares with each listed object.

Visualization

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