HSC 2284

0.13 UTI

0.28

C_N

0.04

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 28

Core radius and density 4.2 [pc], 0.2 [pc^-2]

C3 classification DB

C_N 0.28 Poorly populated
C_dens 0.04 Very loose
C_C3 0.25 Low 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 2284 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a very large distance, below the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

Very distant High extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.09 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.09 (50th percentile).

Data

🔍 Search references for HSC 2284 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–	147.919	-57.307	0.091	-4.603	3.598	–
Hunt & Reffert	2024	147.887	-57.312	0.091	-4.608	3.572	–
Cavallo et al.	2024	147.978	-57.314	0.099	–	–	–
Hunt & Reffert	2023	147.887	-57.312	0.091	-4.608	3.572	–

💡 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–	8.2	4.06	2.36	122	0.160	698	–	–
Hunt & Reffert	2024	8.20	4.06	2.36	122	–	698⁽¹⁾	–	–
Cavallo et al.	2024	6.43	3.22	–	81	0.160	–	–	–
Hunt & Reffert	2023	8.20	4.06	2.36	122	–	–	–	–

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

Visualization

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