HSC 8

0.18 UTI

0.0

C_N

0.14

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 19

Radius (P>50% members) 6.2 [arcmin]

C_N 0.0 Sparse
C_dens 0.14 Very loose
C_C3 0.75 High 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 8 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near 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.

Relatively close Moderate extinction Young

Data

🔍 Search references for HSC 8 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	–	267.699	-28.634	0.346	0.204	-0.247	-12.717
Hunt & Reffert	2024	267.673	-28.635	0.34	0.207	-0.211	-4.411
Hunt & Reffert	2023	267.673	-28.635	0.34	0.207	-0.211	-4.411

💡 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]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	443*	–	–
Hunt & Reffert	2023	2.62	1.66	0.80	73	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3480	100.0	267.73	-28.62	0.35	0.2	-0.15	-13.67	0.2

💡 Note: The % column shows the percentage of members that HSC 8 shares with each listed object.

Visualization

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