HSC 1884

0.15 UTI

0.26

C_N

0.13

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 26

Stellar density (N₅₀/rad) 0.6 [N/pc²]

C3 classification CB

C_N 0.26 Poorly populated
C_dens 0.13 Very loose
C_C3 0.38 Low 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 1884 is a poorly populated, 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 metal-poor, intermediate-age cluster (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.

Distant Moderate extinction Metal-poor Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1884 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–	117.184	-19.651	0.27	-2.224	2.406	–
Hunt & Reffert	2024	117.183	-19.629	0.278	-2.208	2.411	–
Cavallo et al.	2024	117.201	-19.651	0.28	–	–	–
Hunt & Reffert	2023	117.183	-19.629	0.278	-2.208	2.411	–

💡 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–	3.3	1.025	1.34	152	-0.530	181	–	–
Hunt & Reffert	2024	–	–	–	–	–	181⁽¹⁾	–	–
Cavallo et al.	2024	2.96	1.37	–	78	-0.530	–	–	–
Hunt & Reffert	2023	3.64	0.68	1.34	225	–	–	–	–

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

Visualization

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