HSC 2203

0.50 UTI

0.52

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 55

Stellar density (N₅₀/rad) 20.4 [N/pc²]

C3 classification AA

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 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 2203 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Distant High extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 2203 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–	141.994	-47.328	0.248	-4.161	3.231	30.27
Hunt & Reffert	2024	141.992	-47.33	0.247	-4.16	3.249	41.455
Cavallo et al.	2024	141.991	-47.328	0.245	–	–	–
Hunt & Reffert	2023	141.992	-47.33	0.247	-4.16	3.249	41.455

💡 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–	4.995	4.87	2.36	184	0.120	2479	–	–
Hunt & Reffert	2024	–	–	–	–	–	2479⁽¹⁾	–	–
Cavallo et al.	2024	6.14	4.93	–	83	0.120	–	–	–
Hunt & Reffert	2023	3.85	4.81	2.36	285	–	–	–	–

(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 3605	98.2	142.0	-47.33	0.23	-4.16	3.23	32.65	0.06

💡 Note: The % column shows the percentage of members that HSC 2203 shares with each listed object.

Visualization

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