UBC 587

0.59 UTI

0.75

C_N

0.51

C_dens

1.0

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 112

Stellar density (N₅₀/rad) 2.6 [N/pc²]

C3 classification AA

C_N 0.75 Rich
C_dens 0.51 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 587 is a rich, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, metal-rich, very young cluster (see Parameters). It is poorly studied in the literature.

Distant High extinction Massive Metal-rich Very young

Palma et al. (2025)
Classified as optical pair P515, along with HSC_654.

Cavallo et al. (2024)
Silver sample.

Data

🔍 Search references for UBC 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–	311.571	43.683	0.294	-2.864	-4.826	18.936
Hunt & Reffert	2024	311.596	43.727	0.298	-2.87	-4.799	147.278
Celli et al.	2024	311.587	43.69	–	–	–	–
Cavallo et al.	2024	311.563	43.655	0.301	–	–	–
Hunt & Reffert	2023	311.596	43.727	0.298	-2.87	-4.799	147.278
Cantat-Gaudin et al.	2020	311.587	43.69	0.286	-2.86	-4.837	–
Castro-Ginard et al.	2020	311.598	43.682	0.285	-2.865	-4.84	–

💡 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–	3.03	3.57	2.64	14	0.550	1112	–	–
Hunt & Reffert	2024	–	–	–	–	–	1621⁽¹⁾	–	–
Celli et al.	2024	–	–	–	14	–	604	–	–
Cavallo et al.	2024	3.42	3.57	–	22	0.550	–	–	–
Hunt & Reffert	2023	3.03	3.74	2.64	11	–	–	–	–
Cantat-Gaudin et al.	2020	2.74	3.11	–	14	–	–	–	–

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

Visualization

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