HSC 1341

0.11 UTI

0.0

C_N

0.15

C_dens

0.25

C_C3

0.25

C_lit

0.6

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.15 Very loose
C_C3 0.25 Low quality
C_lit 0.25 Poorly studied
C_dup 0.6 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1341 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as primordial binary cluster 42 along with COIN-Gaia_18.

Palma et al. (2025)
Part of multiple system G9, along with COIN-Gaia_18 and ASCC_14.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for HSC 1341 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–	80.524	35.48	0.94	-0.117	-3.105	-9.214
Zhang et al.	2024	80.256	35.326	–	–	–	–
Cavallo et al.	2024	80.587	35.554	0.965	–	–	–
Hunt & Reffert	2023	80.256	35.326	0.965	-0.13	-3.158	-5.348

💡 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–	1.0	0.55	1.07	100	0.178	–	–	–
Liu et al.	2025	1.13	0.19	–	158	–	–	–	–
Zhang et al.	2024	–	–	–	–	-0.213⁽¹⁾	–	–	–
Cavallo et al.	2024	1.00	0.55	–	100	0.570	–	–	–
Hunt & Reffert	2023	0.99	0.92	1.07	49	–	–	–	–

(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 1089	40.0	80.07	35.63	0.92	-0.24	-3.11	-14.17	0.15

💡 Note: The % column shows the percentage of members that HSC 1341 shares with each listed object.

Visualization

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