HSC 1582

0.15 UTI

0.0

C_N

0.02

C_dens

0.25

C_C3

0.25

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 17

Radius (P>50% members) 6.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.25 Low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 1582 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~7.00 kpc) differs significantly from the median photometric distance (~5.01 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Very distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1582 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	–	95.785	11.649	0.143	0.158	-0.263	59.748
Zhang et al.	2024	95.844	11.586	–	–	–	–
Hunt & Reffert	2024	95.844	11.586	0.144	0.155	-0.258	43.876
Cavallo et al.	2024	95.792	11.669	0.145	–	–	–
Hunt & Reffert	2023	95.844	11.586	0.144	0.155	-0.258	43.876

💡 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]	Bfr	BSS
Zhang et al.	2024	–	–	–	–	-0.309*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	285*	–	–
Cavallo et al.	2024	4.49	2.58	–	141	-0.280	–	–	–
Hunt & Reffert	2023	5.53	2.69	1.84	72	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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