HSC 2720

0.19 UTI

0.0

C_N

0.15

C_dens

0.75

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 19

Core radius and density 2.2 [pc], 0.8 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.15 Very loose
C_C3 0.75 High 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 2720 is a sparse, very loose object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a metal-rich, 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.

Relatively close Low extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for HSC 2720 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–	230.524	-52.388	0.887	-4.639	-4.585	-20.369
Hunt & Reffert	2024	230.617	-52.394	0.889	-4.617	-4.559	-11.018
Cavallo et al.	2024	230.528	-52.418	0.893	–	–	–
Hunt & Reffert	2023	230.617	-52.394	0.889	-4.617	-4.559	-11.018

💡 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–	1.05	0.94	0.32	162	0.680	96	–	–
Hunt & Reffert	2024	1.05	0.94	0.32	162	–	96⁽¹⁾	–	–
Cavallo et al.	2024	1.14	0.40	–	324	0.680	–	–	–
Hunt & Reffert	2023	1.05	0.94	0.32	162	–	–	–	–

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

Visualization

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