HSC 2960

0.18 UTI

0.0

C_N

0.05

C_dens

0.38

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 18

Stellar density (N₅₀/rad) 0.2 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.05 Very loose
C_C3 0.38 Low 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

ℹ️

HSC 2960 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, old cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It was recently reported in the literature.

⚠️ 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 High extinction Massive Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 2960 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	259.77	-28.751	0.186	-2.898	-4.099	-33.902
Hu & Soubiran	2025	259.801	-28.829	–	–	–	–
Hunt & Reffert	2024	259.784	-28.76	0.208	-2.924	-4.096	-22.964
Cavallo et al.	2024	259.801	-28.829	0.208	–	–	–
Hunt & Reffert	2023	259.784	-28.76	0.208	-2.924	-4.096	-22.964

💡 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–	5.43	3.085	1.04	4162	-0.165	1530	–	–
Hu & Soubiran	2025	–	–	–	–	0.170⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1530⁽¹⁾	–	–
Cavallo et al.	2024	6.46	2.71	–	6761	-0.500	–	–	–
Hunt & Reffert	2023	4.40	3.46	1.04	1563	–	–	–	–

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

Visualization

ℹ️

1 2