HSC 1724

0.22 UTI

0.25

C_N

0.22

C_dens

0.12

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.1 [N/pc²]

C3 classification DC

C_N 0.25 Poorly populated
C_dens 0.22 Very loose
C_C3 0.12 Very 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 1724 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (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 close Low extinction Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for HSC 1724 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	110.273	-1.387	6.299	-0.338	-12.449	23.045
Hu & Soubiran	2025	109.929	-1.937	–	–	–	–
Zhang et al.	2024	110.154	-2.005	–	–	–	–
Cavallo et al.	2024	109.929	-1.937	6.518	–	–	–
Hunt & Reffert	2023	110.154	-2.005	6.465	-0.239	-12.394	17.417

💡 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–	0.155	0.29	0.54	1090	0.154	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.170⁽⁵⁾	–	–	–
Zhang et al.	2024	–	–	–	–	0.154⁽¹⁾	–	–	–
Cavallo et al.	2024	0.16	0.47	–	708	0.500	–	–	–
Hunt & Reffert	2023	0.15	0.11	0.54	1472	–	–	–	–

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

Visualization

ℹ️

1 2