HSC 1328

0.14 UTI

0.0

C_N

0.13

C_dens

0.5

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 21

Core radius and density 2.1 [pc], 0.6 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.13 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.03 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

HSC 1328 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, very 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.

Very distant Moderate extinction Metal-rich Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for HSC 1328 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	82.69	38.607	0.18	0.056	-0.857	-31.455
Hunt & Reffert	2024	82.695	38.6	0.179	0.044	-0.855	–
Cavallo et al.	2024	82.66	38.649	0.182	–	–	–
Hunt & Reffert	2023	82.695	38.6	0.179	0.044	-0.855	–

💡 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–	5.5	2.58	0.47	15	0.540	452	–	–
Hunt & Reffert	2024	5.50	2.58	0.47	15	–	452⁽¹⁾	–	–
Cavallo et al.	2024	4.70	2.46	–	63	0.540	–	–	–
Hunt & Reffert	2023	5.50	2.58	0.47	15	–	–	–	–

(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 3573	100.0	82.67	38.63	0.17	0.06	-0.86	-39.38	0.08

💡 Note: The % column shows the percentage of members that HSC 1328 shares with each listed object.

Visualization

ℹ️

1 2