HSC 2159

0.46 UTI

0.28

C_N

1.0

C_dens

0.5

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 28

Stellar density (N₅₀/rad) 8.2 [N/pc²]

C3 classification DA

C_N 0.28 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 2159 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a 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.

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

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 2159 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–	130.778	-48.609	0.22	-3.162	3.412	–
Hu & Soubiran	2025	130.771	-48.609	–	–	–	–
Hunt & Reffert	2024	130.78	-48.603	0.212	-3.18	3.406	–
Cavallo et al.	2024	130.771	-48.609	0.213	–	–	–
Hunt & Reffert	2023	130.78	-48.603	0.212	-3.18	3.406	–

💡 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–	4.375	2.675	0.84	364	0.235	302	–	–
Hu & Soubiran	2025	–	–	–	–	-0.090⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	302⁽¹⁾	–	–
Cavallo et al.	2024	4.51	2.54	–	525	0.560	–	–	–
Hunt & Reffert	2023	4.24	2.81	0.84	203	–	–	–	–

(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 3416	100.0	130.78	-48.61	0.22	-3.17	3.41	40.19	0.1

💡 Note: The % column shows the percentage of members that HSC 2159 shares with each listed object.

Visualization

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