HSC 2830

0.33 UTI

0.28

C_N

0.47

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 28

Core radius and density 1.1 [pc], 2.4 [pc^-2]

C3 classification BA

C_N 0.28 Poorly populated
C_dens 0.47 Loose
C_C3 0.75 High quality
C_lit 0.06 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 2830 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 a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (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.

Relatively close High extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.29 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.29 (50th percentile).

Data

🔍 Search references for HSC 2830 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–	253.302	-45.029	0.364	-0.474	-2.577	-8.314
Hu & Soubiran	2025	253.315	-45.031	–	–	–	–
Hunt & Reffert	2024	253.292	-45.036	0.369	-0.502	-2.584	-9.837
Cavallo et al.	2024	253.315	-45.031	0.369	–	–	–
Hunt & Reffert	2023	253.292	-45.036	0.369	-0.502	-2.584	-9.837

💡 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–	2.44	3.56	2.425	33	-0.200	531	–	–
Hu & Soubiran	2025	–	–	–	–	-0.400⁽⁵⁾	–	–	–
Hunt & Reffert	2024	2.44	3.56	2.43	33	–	531⁽¹⁾	–	–
Cavallo et al.	2024	2.23	3.78	–	562	0.000	–	–	–
Hunt & Reffert	2023	2.44	3.56	2.42	33	–	–	–	–

(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 3746	96.4	253.31	-45.03	0.36	-0.47	-2.58	-8.31	0.02

💡 Note: The % column shows the percentage of members that HSC 2830 shares with each listed object.

Visualization

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