UPK 585

0.65 UTI

0.55

C_N

1.0

C_dens

0.5

C_C3

0.6

C_lit

1.0

C_dup

N₅₀ (P>50% members) 59

Stellar density (N₅₀/rad) 5.8 [N/pc²]

C3 classification BB

C_N 0.55 Moderately populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.6 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UPK 585 is a moderately populated, very dense object of intermediate C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is moderately studied in the literature.

Close Low extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

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

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for UPK 585 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–	212.543	-75.904	1.377	-6.871	-5.551	-21.823
Li et al.	2025	212.787	-75.872	1.388	-6.81	-5.57	–
Almeida et al.	2025	212.864	-75.768	–	–	–	–
Alfonso et al.	2024	211.898	-75.922	1.33	-6.899	-5.241	–
Cavallo et al.	2024	212.95	-75.745	1.395	–	–	–
Hunt & Reffert	2023	212.609	-75.852	1.394	-6.778	-5.606	-22.063
Almeida et al.	2023	212.838	-75.693	–	–	–	–
Dias et al.	2021	212.864	-75.768	1.416	-6.766	-5.532	–
Cantat-Gaudin et al.	2020	212.787	-75.872	1.388	-6.81	-5.57	–
Cantat-Gaudin & Anders	2020	212.775	-75.896	1.402	-6.788	-5.549	–
Sim et al.	2019	212.72	-75.871	–	-6.8	-5.55	–

💡 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–	0.7	0.4	0.39	93	-0.075	78	0.87	–
Li et al.	2025	0.79	0.35	–	91	0.267	–	–	–
Almeida et al.	2025	0.69	0.45	–	125	–	44	–	–
Alfonso et al.	2024	0.70	0.20	–	65	-0.075	–	–	–
Cavallo et al.	2024	0.70	0.45	–	102	0.250	–	–	–
Hunt & Reffert	2023	0.68	0.22	0.39	95	–	–	–	–
Almeida et al.	2023	0.70	0.45	–	282	-0.233	113⁽¹⁾	0.87	–
Tarricq et al.	2022	0.69	–	–	81	–	–	–	–
Dias et al.	2021	0.69	0.45	–	125	-0.075	–	–	–
Cantat-Gaudin et al.	2020	0.70	0.20	–	78	–	–	–	–
Cantat-Gaudin & Anders	2020	0.70	–	–	–	–	–	–	–
Sim et al.	2019	0.71	–	–	79	–	–	–	–

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

Visualization

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