HSC 2419

0.15 UTI

0.29

C_N

0.22

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 29

Stellar density (N₅₀/rad) 1.1 [N/pc²]

C3 classification CC

C_N 0.29 Poorly populated
C_dens 0.22 Very loose
C_C3 0.25 Low 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 2419 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low 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.

⚠️ 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 Low extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair (not dynamically associated) P143, along with HSC_2402.

Cavallo et al. (2024)
Gold sample.

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

Data

🔍 Search references for HSC 2419 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–	169.548	-60.793	0.777	-14.433	1.672	-23.497
Hu & Soubiran	2025	169.621	-60.814	–	–	–	–
Cavallo et al.	2024	169.621	-60.814	0.779	–	–	–
Hunt & Reffert	2023	169.593	-60.847	0.777	-14.414	1.652	-22.368

💡 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–	1.175	0.505	0.67	940	-0.065	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.310⁽⁵⁾	–	–	–
Cavallo et al.	2024	1.15	0.70	–	912	0.180	–	–	–
Hunt & Reffert	2023	1.20	0.31	0.67	968	–	–	–	–

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

Visualization

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