HSC 582

0.35 UTI

0.28

C_N

0.24

C_dens

0.62

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 28

Stellar density (N₅₀/rad) 1.2 [N/pc²]

C3 classification AC

C_N 0.28 Poorly populated
C_dens 0.24 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

HSC 582 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Relatively close Low extinction Low mass Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 15 along with ASCC_108.

Palma et al. (2025)
Classified as optical pair P263, along with ASCC_108.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 582 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	300.143	37.304	0.857	1.011	-0.932	-18.418
Hu & Soubiran	2025	300.209	37.309	–	–	–	–
Hunt & Reffert	2024	300.106	37.411	0.851	1.062	-0.893	-21.509
Cavallo et al.	2024	300.208	37.309	0.847	–	–	–
Hunt & Reffert	2023	300.106	37.411	0.851	1.062	-0.893	-21.509

💡 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–	1.15	0.42	0.6	776	0.150	43	–	–
Liu et al.	2025	1.38	0.20	–	794	–	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.230⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	43⁽¹⁾	–	–
Cavallo et al.	2024	1.15	0.50	–	776	0.530	–	–	–
Hunt & Reffert	2023	1.15	0.42	0.60	561	–	–	–	–

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

Visualization

ℹ️

1 2