UBC 480

(OCSN 287)

0.00 UTI

0.0

C_N

1.0

C_dens

1.0

C_C3

0.44

C_lit

0.0

C_dup

C3 classification AA

Number of members (P>50%) 23

Radius (P>50% members) 10.3 [arcmin]

C_N 0.0 Sparse
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.44 Poorly studied
C_dup 0.0 Very likely duplicate

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

Overview

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UBC 480 is a sparse, very dense object of very high C3 quality. Its parallax locates it at a very close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption and age parameters (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.

Very close Low extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for UBC 480 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	–	120.094	-50.636	2.116	-5.34	5.715	7.785
Li et al.	2025	119.954	-50.636	2.077	-5.373	5.67	–
Alfonso et al.	2024	119.747	-50.48	2.031	-5.066	5.739	–
Qin et al.	2023	120.12	-50.71	2.07	-5.03	5.77	11.62
He et al.	2022	119.731	-50.591	2.089	-5.095	5.753	–
Tarricq et al.	2022	120.132	-50.697	2.088	-4.963	5.694	–
Cantat-Gaudin et al.	2020	119.954	-50.636	2.077	-5.373	5.67	–
Castro-Ginard et al.	2020	119.943	-50.661	2.075	-5.396	5.683	–

💡 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
Li et al.	2025	0.46	0.60	–	29	0.049	–	–	–
Alfonso et al.	2024	0.48	0.08	–	680	0.012	–	–	–
Qin et al.	2023	0.62	0.62	–	20	–	–	–	–
He et al.	2022	–	0.75	–	20	–	–	–	–
Tarricq et al.	2022	0.47	–	–	209	–	–	–	–
Cantat-Gaudin et al.	2020	0.48	0.08	–	209	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Alessi 34	100.0	120.1	-50.64	2.07	-5.19	5.72	11.16	0.9

💡 Note: The % column shows the percentage of members that UBC 480 shares with each listed object.

Visualization

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