HSC 2378

0.10 UTI

0.0

C_N

0.04

C_dens

0.38

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 14

Core radius and density 2.9 [pc], 0.2 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.38 Low 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

ℹ️

HSC 2378 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.07 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.07 (50th percentile).

Data

🔍 Search references for HSC 2378 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	164.382	-57.823	0.363	-7.137	2.647	-22.385
Hunt & Reffert	2024	164.331	-57.832	0.357	-7.141	2.696	-61.878
Cavallo et al.	2024	164.269	-57.742	0.353	–	–	–
Hunt & Reffert	2023	164.331	-57.832	0.357	-7.141	2.696	-61.878

💡 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–	2.55	1.48	2.05	65	0.370	71	–	–
Hunt & Reffert	2024	2.55	1.47	2.05	65	–	71⁽¹⁾	–	–
Cavallo et al.	2024	2.38	1.72	–	263	0.370	–	–	–
Hunt & Reffert	2023	2.55	1.48	2.05	65	–	–	–	–

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

Visualization

ℹ️

1 2