HSC 1308

0.27 UTI

0.0

C_N

0.24

C_dens

0.5

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 1.2 [N/pc²]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.24 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1308 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

Relatively close Moderate extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as primordial binary cluster 190 along with HXHWL_18, and of multiple system 2 along with COIN-Gaia_10, COIN-Gaia_39, HXHWL_18 and ASCC_12.

Palma et al. (2025)
Part of multiple system G110, along with COIN-Gaia_39, ASCC_12 and HXHWL_18.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1308 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–	76.327	38.466	0.94	-0.385	-3.113	-16.527
Liu et al.	2025	76.51	38.47	0.95	-0.36	-3.13	-16.74
Zhang et al.	2024	76.513	38.47	–	–	–	–
Hunt & Reffert	2024	76.513	38.47	0.952	-0.36	-3.133	-16.738
Cavallo et al.	2024	76.193	38.302	0.95	–	–	–
Hunt & Reffert	2023	76.513	38.47	0.952	-0.36	-3.133	-16.738

💡 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–	1.09	1.32	1.25	32	0.081	81	–	–
Liu et al.	2025	1.91	0.55	–	32	–	–	–	–
Zhang et al.	2024	–	–	–	–	-0.019⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	81⁽¹⁾	–	–
Cavallo et al.	2024	1.09	1.62	–	19	0.180	–	–	–
Hunt & Reffert	2023	0.98	1.32	1.25	55	–	–	–	–

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

Visualization

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