HSC 1018

0.22 UTI

0.25

C_N

0.24

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AC

Number of members (P>50%) 25

Radius (P>50% members) 2.3 [arcmin]

C_N 0.25 Poorly populated
C_dens 0.24 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 1018 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a young 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.

Very distant Moderate extinction Young

Data

🔍 Search references for HSC 1018 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	–	23.269	66.914	0.147	-1.565	0.351	–
Hunt & Reffert	2024	23.339	66.918	0.146	-1.594	0.355	–
Hunt & Reffert	2023	23.339	66.918	0.146	-1.594	0.355	–

💡 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]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	268*	–	–
Hunt & Reffert	2023	5.98	2.71	1.21	74	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 4737	88.0	23.24	66.91	0.16	-1.55	0.35	–	0.08

💡 Note: The % column shows the percentage of members that HSC 1018 shares with each listed object.

Visualization

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