HSC 2358

0.22 UTI

0.0

C_N

0.49

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 2.5 [N/pc²]

C3 classification CA

C_N 0.0 Sparse
C_dens 0.49 Loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 2358 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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.

Relatively close Moderate extinction Near-solar metallicity Young

Palma et al. (2025)
Part of multiple system G151, along with NGC_3324, HSC_2342 and IC_2581.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 2358 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–	160.504	-58.439	0.382	-7.16	2.949	–
Hunt & Reffert	2024	160.409	-58.469	0.38	-7.161	2.956	–
Cavallo et al.	2024	160.5	-58.436	0.38	–	–	–
Hunt & Reffert	2023	160.409	-58.469	0.38	-7.161	2.956	–

💡 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–	2.565	1.395	1.47	26	0.200	209	–	–
Hunt & Reffert	2024	–	–	–	–	–	209⁽¹⁾	–	–
Cavallo et al.	2024	2.51	1.33	–	22	0.200	–	–	–
Hunt & Reffert	2023	2.62	1.46	1.47	30	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3641	96.0	160.52	-58.44	0.39	-7.17	2.95	-97.61	0.11

💡 Note: The % column shows the percentage of members that HSC 2358 shares with each listed object.

Visualization

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