HSC 1886

0.13 UTI

0.26

C_N

0.07

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 3.5 [pc], 0.3 [pc^-2]

C3 classification DB

C_N 0.26 Poorly populated
C_dens 0.07 Very loose
C_C3 0.25 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

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HSC 1886 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-rich, intermediate-age cluster (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.

⚠️ 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-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.96 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.96 (50th percentile).

Data

🔍 Search references for HSC 1886 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	115.664	-20.692	0.24	-1.676	2.543	–
Hunt & Reffert	2024	115.684	-20.733	0.22	-1.68	2.539	88.313
Cavallo et al.	2024	115.663	-20.694	0.226	–	–	–
Hunt & Reffert	2023	115.684	-20.733	0.22	-1.68	2.539	88.313

💡 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–	3.61	1.23	1.88	140	0.620	261	–	–
Hunt & Reffert	2024	3.61	1.23	1.88	140	–	261⁽¹⁾	–	–
Cavallo et al.	2024	5.22	1.25	–	50	0.620	–	–	–
Hunt & Reffert	2023	3.61	1.23	1.88	140	–	–	–	–

(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 3232	84.6	115.65	-20.68	0.24	-1.67	2.54	–	0.03

💡 Note: The % column shows the percentage of members that HSC 1886 shares with each listed object.

Visualization

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