HSC 2594

0.15 UTI

0.0

C_N

0.19

C_dens

0.5

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 2.2 [pc], 0.9 [pc^-2]

C3 classification DA

C_N 0.0 Sparse
C_dens 0.19 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

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HSC 2594 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near 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.

⚠️ 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.

Distant Moderate extinction Metal-rich Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.90 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.90 (50th percentile).

Data

🔍 Search references for HSC 2594 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–	202.44	-62.271	0.341	-5.465	-1.642	-43.041
Hunt & Reffert	2024	202.437	-62.25	0.337	-5.476	-1.656	-43.123
Cavallo et al.	2024	202.421	-62.257	0.337	–	–	–
Hunt & Reffert	2023	202.437	-62.25	0.337	-5.476	-1.656	-43.123

💡 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–	3.09	3.0	1.69	16	0.570	223	–	–
Hunt & Reffert	2024	3.09	3.01	1.69	16	–	223⁽¹⁾	–	–
Cavallo et al.	2024	3.16	2.65	–	40	0.570	–	–	–
Hunt & Reffert	2023	3.09	3.00	1.69	16	–	–	–	–

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

Visualization

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