HSC 1659

0.01 UTI

0.0

C_N

0.1

C_dens

0.25

C_C3

0.0

C_lit

0.2

C_dup

N_m (P>50%) 24

Core radius and density 2.1 [pc], 0.5 [pc^-2]

C3 classification DB

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.25 Low quality
C_lit 0.0 Rarely studied
C_dup 0.2 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 1659 is a sparse, very loose object of low 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.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Young

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Data

🔍 Search references for HSC 1659 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–	100.813	2.12	0.328	-0.28	1.501	62.763
Hunt & Reffert	2024	100.819	2.13	0.323	-0.277	1.497	–
Hunt & Reffert	2023	100.819	2.13	0.323	-0.277	1.497	–

💡 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–	2.92	2.08	0.84	36	–	276	–	–
Hunt & Reffert	2024	2.92	2.08	0.84	36	–	276⁽¹⁾	–	–
Hunt & Reffert	2023	2.92	2.08	0.84	36	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Alessi 16	80.0	100.83	2.15	0.33	-0.26	1.5	70.83	0.14

💡 Note: The % column shows the percentage of members that HSC 1659 shares with each listed object.

Visualization

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