UBC 484

0.43 UTI

0.57

C_N

0.39

C_dens

0.75

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 65

Core radius and density 1.5 [pc], 1.9 [pc^-2]

C3 classification AB

C_N 0.57 Moderately populated
C_dens 0.39 Loose
C_C3 0.75 High quality
C_lit 0.23 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 484 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

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).

Castro-Ginard et al. (2020)
Coincidence with Sim et al. (2019, J. Korean Astron. Soc., 52, 145) or Liu & Pang (2019ApJS..245...32L), see Sect. 4.1.5.

Data

🔍 Search references for UBC 484 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–	138.025	-44.818	0.454	-5.323	2.768	22.632
Li et al.	2025	138.008	-44.822	0.441	-5.375	2.758	–
Almeida et al.	2025	138.008	-44.822	–	–	–	–
Hunt & Reffert	2024	138.023	-44.814	0.45	-5.338	2.784	32.206
Cavallo et al.	2024	138.036	-44.819	0.45	–	–	–
Hunt & Reffert	2023	138.023	-44.814	0.45	-5.338	2.784	32.206
Almeida et al.	2023	138.013	-44.823	–	–	–	–
Dias et al.	2021	138.008	-44.822	0.441	-5.375	2.758	–
Castro-Ginard et al.	2020	138.0	-44.814	0.447	-5.381	2.728	–

💡 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–	1.995	1.36	1.37	246	0.034	235	0.45	–
Li et al.	2025	1.90	1.09	–	463	0.074	–	–	–
Almeida et al.	2025	1.99	1.36	–	327	–	235	–	–
Hunt & Reffert	2024	2.00	1.20	1.37	246	–	251⁽¹⁾	–	–
Cavallo et al.	2024	2.00	1.70	–	195	0.000	–	–	–
Hunt & Reffert	2023	2.00	1.20	1.37	246	–	–	–	–
Almeida et al.	2023	1.95	1.57	–	134	0.013	235⁽¹⁾	0.45	–
Dias et al.	2021	1.99	1.36	–	327	0.054	–	–	–
Kounkel et al.	2020	2.04	1.63	–	123	–	–	–	–

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

Visualization

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