HSC 660

0.33 UTI

0.4

C_N

1.0

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 40

Stellar density (N₅₀/rad) 17.7 [N/pc²]

C3 classification DB

C_N 0.4 Poorly populated
C_dens 1.0 Very dense
C_C3 0.25 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 660 is a poorly populated, very dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a significant percentage of members with a later reported entry. See table with shared members information.

Distant High extinction Metal-rich Young

Cavallo et al. (2024)
Wood sample.

Data

🔍 Search references for HSC 660 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–	310.898	44.916	0.31	-3.089	-4.826	–
Hunt & Reffert	2024	310.902	44.918	0.304	-3.092	-4.807	–
Cavallo et al.	2024	310.711	44.859	0.304	–	–	–
Hunt & Reffert	2023	310.902	44.918	0.304	-3.092	-4.807	–

💡 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–	3.345	3.825	3.16	70	0.790	580	–	–
Hunt & Reffert	2024	–	–	–	–	–	580⁽¹⁾	–	–
Cavallo et al.	2024	3.82	3.34	–	112	0.790	–	–	–
Hunt & Reffert	2023	2.87	4.31	3.16	27	–	–	–	–

(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 3371	57.5	310.9	44.91	0.32	-3.09	-4.88	–	0.02

💡 Note: The % column shows the percentage of members that HSC 660 shares with each listed object.

Visualization

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