HSC 2220

0.25 UTI

0.25

C_N

0.3

C_dens

0.75

C_C3

0.0

C_lit

0.96

C_dup

N_m (P>50%) 25

Core radius and density 1.2 [pc], 1.5 [pc^-2]

C3 classification AB

C_N 0.25 Poorly populated
C_dens 0.3 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.96 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 2220 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

Note: This is a unique object, which shares a very small percentage of members with at least one previously reported entry. See table with shared members information.

Distant High extinction Intermediate age

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.84 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.84 (50th percentile).

Data

🔍 Search references for HSC 2220 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–	142.423	-50.557	0.252	-5.501	3.437	26.076
Hunt & Reffert	2024	142.416	-50.556	0.245	-5.425	3.419	26.122
Hunt & Reffert	2023	142.416	-50.556	0.245	-5.425	3.419	26.122

💡 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–	3.62	4.13	1.68	488	–	568	–	–
Hunt & Reffert	2024	3.62	4.13	1.68	488	–	568⁽¹⁾	–	–
Hunt & Reffert	2023	3.62	4.13	1.68	489	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 2466	4.0	142.59	-50.44	0.4	-5.56	3.35	–	0.12

💡 Note: The % column shows the percentage of members that HSC 2220 shares with each listed object.

Visualization

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