HSC 398

0.28 UTI

0.38

C_N

0.48

C_dens

0.5

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 38

Core radius and density 1.4 [pc], 2.4 [pc^-2]

C3 classification BB

C_N 0.38 Poorly populated
C_dens 0.48 Loose
C_C3 0.5 Intermediate 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 398 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, young cluster (see Parameters). It was recently reported in the literature.

Relatively close High extinction Metal-rich Young

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.08 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.08 (50th percentile).

Data

🔍 Search references for HSC 398 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–	289.943	12.53	0.335	-2.18	-4.146	35.472
Hunt & Reffert	2024	289.942	12.528	0.366	-2.17	-4.213	26.199
Cavallo et al.	2024	289.932	12.516	0.361	–	–	–
Hunt & Reffert	2023	289.942	12.528	0.366	-2.17	-4.213	26.199

💡 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–	2.47	4.59	2.73	34	0.890	519	–	–
Hunt & Reffert	2024	2.47	4.59	2.73	34	–	519⁽¹⁾	–	–
Cavallo et al.	2024	3.82	4.18	–	20	0.890	–	–	–
Hunt & Reffert	2023	2.47	4.59	2.73	34	–	–	–	–

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

Visualization

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