HSC 1708

0.24 UTI

0.0

C_N

0.46

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 21

Stellar density (N₅₀/rad) 2.3 [N/pc²]

C3 classification BA

C_N 0.0 Sparse
C_dens 0.46 Loose
C_C3 0.75 High 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 1708 is a sparse, loose object of high C3 quality. Its parallax locates it at a very large distance, well below the mid-plane, affected by moderate extinction. It is catalogued as an 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.

Very distant Moderate extinction Intermediate age

Data

🔍 Search references for HSC 1708 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–	100.82	-4.855	0.087	0.127	0.337	–
Hunt & Reffert	2024	100.825	-4.856	0.096	0.127	0.315	–
Hunt & Reffert	2023	100.825	-4.856	0.096	0.127	0.315	–

💡 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–	9.61	1.59	1.18	124	–	423	–	–
Hunt & Reffert	2024	–	–	–	–	–	423⁽¹⁾	–	–
Hunt & Reffert	2023	9.61	1.59	1.18	124	–	–	–	–

(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 3116	80.0	100.82	-4.85	0.09	0.09	0.34	95.85	0.05

💡 Note: The % column shows the percentage of members that HSC 1708 shares with each listed object.

Visualization

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