HSC 2575

0.14 UTI

0.0

C_N

0.12

C_dens

0.5

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 19

Core radius and density 1.7 [pc], 0.6 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.12 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 2575 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, 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 High extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Data

🔍 Search references for HSC 2575 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–	199.619	-62.468	0.204	-6.093	-0.959	-45.695
Hunt & Reffert	2024	199.646	-62.466	0.196	-6.084	-0.901	-50.525
Cavallo et al.	2024	199.574	-62.456	0.2	–	–	–
Hunt & Reffert	2023	199.646	-62.466	0.196	-6.084	-0.901	-50.525

💡 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–	4.32	3.9	2.74	33	0.400	1914	–	–
Hunt & Reffert	2024	4.32	3.91	2.74	33	–	1914⁽¹⁾	–	–
Cavallo et al.	2024	4.04	3.77	–	151	0.400	–	–	–
Hunt & Reffert	2023	4.32	3.90	2.74	33	–	–	–	–

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

Visualization

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