UPK 587

0.61 UTI

0.44

C_N

0.56

C_dens

0.75

C_C3

0.65

C_lit

1.0

C_dup

N₅₀ (P>50% members) 44

Stellar density (N₅₀/rad) 2.8 [N/pc²]

C3 classification AB

C_N 0.44 Poorly populated
C_dens 0.56 Moderately dense
C_C3 0.75 High quality
C_lit 0.65 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 587 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for UPK 587 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–	201.078	-49.914	1.114	-8.863	-2.603	-20.612
Li et al.	2025	200.909	-49.907	1.112	-8.828	-2.618	–
Almeida et al.	2025	201.018	-49.87	–	–	–	–
Alfonso et al.	2024	201.053	-49.904	1.046	-8.864	-2.621	–
Hunt & Reffert	2024	201.15	-49.927	1.103	-8.788	-2.621	-17.049
Cavallo et al.	2024	201.089	-49.891	1.112	–	–	–
Hunt & Reffert	2023	201.15	-49.927	1.103	-8.788	-2.621	-17.049
Tarricq et al.	2022	200.973	-49.906	1.088	-8.921	-2.52	–
Dias et al.	2021	201.018	-49.87	1.104	-8.854	-2.615	-8.411
Spina et al.	2021	201.032	-49.87	1.106	-8.832	-2.611	–
Cantat-Gaudin et al.	2020	200.909	-49.907	1.112	-8.828	-2.618	–
Cantat-Gaudin & Anders	2020	201.024	-49.847	1.106	-8.864	-2.577	–
Sim et al.	2019	201.099	-49.823	–	-8.82	-2.6	–

💡 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–	0.88	0.16	0.63	117	0.237	89	–	–
Li et al.	2025	1.02	0.20	–	149	0.358	–	–	–
Almeida et al.	2025	0.87	0.25	–	104	–	80	–	–
Alfonso et al.	2024	0.90	0.14	–	112	0.125	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	98⁽¹⁾	–	–
Cavallo et al.	2024	0.87	0.16	–	275	0.350	–	–	–
Hunt & Reffert	2023	0.85	0.16	0.63	146	–	–	–	–
Tarricq et al.	2022	0.88	–	–	129	–	–	–	–
Dias et al.	2021	0.87	0.25	–	104	0.125	–	–	–
Spina et al.	2021	0.91	–	–	117	–	–	–	–
Cantat-Gaudin et al.	2020	0.90	0.14	–	117	–	–	–	–
Cantat-Gaudin & Anders	2020	0.88	–	–	–	–	–	–	–
Sim et al.	2019	0.89	–	–	89	–	–	–	–

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

Visualization

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