HSC 1890

0.09 UTI

0.43

C_N

0.06

C_dens

0.38

C_C3

0.0

C_lit

0.54

C_dup

N₅₀ (P>50% members) 43

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification CB

C_N 0.43 Poorly populated
C_dens 0.06 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.54 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 1890 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large distance, below the mid-plane. It is catalogued as a cluster (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

No fundamental parameters

Data

🔍 Search references for HSC 1890 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–	113.623	-21.876	0.134	-1.167	1.745	86.601
Hunt & Reffert	2024	113.634	-21.879	0.14	-1.165	1.796	103.824

💡 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–	–	–	–	–	–	974	–	–
Hunt & Reffert	2024	–	–	–	–	–	974⁽¹⁾	–	–

(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 3690	46.5	113.63	-21.88	0.12	-1.14	1.72	–	0.12

💡 Note: The % column shows the percentage of members that HSC 1890 shares with each listed object.

Visualization

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