HSC 2228

0.00 UTI

0.0

C_N

0.13

C_dens

0.62

C_C3

0.03

C_lit

0.0

C_dup

N_m (P>50%) 23

Core radius and density 2.5 [pc], 0.7 [pc^-2]

C3 classification CA

C_N 0.0 Sparse
C_dens 0.13 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.03 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

HSC 2228 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a very large distance, below the mid-plane, affected by high extinction. It is catalogued as a massive, metal-rich, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is very likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Very distant High extinction Massive Metal-rich Very young

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.57 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.57 (50th percentile).

Data

🔍 Search references for HSC 2228 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	141.435	-53.241	0.1	-3.827	3.457	65.718
Hunt & Reffert	2024	141.433	-53.241	0.098	-3.819	3.416	–
Cavallo et al.	2024	141.444	-53.254	0.097	–	–	–
Hunt & Reffert	2023	141.433	-53.241	0.098	-3.819	3.416	–

💡 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–	9.38	3.17	1.99	5	0.950	1082	–	–
Hunt & Reffert	2024	9.39	3.17	1.99	5	–	1082⁽¹⁾	–	–
Cavallo et al.	2024	6.19	1.94	–	48	0.950	–	–	–
Hunt & Reffert	2023	9.38	3.17	1.99	5	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Miller 1	100.0	141.43	-53.24	0.13	-3.83	3.49	43.29	0.38

💡 Note: The % column shows the percentage of members that HSC 2228 shares with each listed object.

Visualization

ℹ️

1 2