HSC 1323

0.17 UTI

0.0

C_N

0.12

C_dens

0.62

C_C3

0.3

C_lit

0.64

C_dup

N₅₀ (P>50% members) 19

Stellar density (N₅₀/rad) 0.6 [N/pc²]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.12 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.3 Poorly studied
C_dup 0.64 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1323 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 low extinction. It is catalogued as a near-solar metallicity, young cluster (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 Young

Liu et al. (2025)
Classified as primordial binary cluster 41 along with COIN-Gaia_16.

Palma et al. (2025)
Part of multiple system G112, along with HSC_1321 and COIN-Gaia_16.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1323 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–	79.389	37.855	0.64	0.986	-3.528	-19.407
Zhang et al.	2024	79.348	37.892	–	–	–	–
Hunt & Reffert	2024	79.348	37.892	0.632	1.01	-3.544	-41.149
Cavallo et al.	2024	79.411	37.8	0.632	–	–	–
Hunt & Reffert	2023	79.348	37.892	0.632	1.01	-3.544	-41.149

💡 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–	1.58	0.4	1.26	35	-0.293	118	–	–
Liu et al.	2025	2.18	0.26	–	21	–	–	–	–
Zhang et al.	2024	–	–	–	–	-0.247⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	118⁽¹⁾	–	–
Cavallo et al.	2024	1.58	0.75	–	55	-0.340	–	–	–
Hunt & Reffert	2023	1.49	0.40	1.26	35	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0287	36.0	79.46	38.03	0.62	1.04	-3.6	-19.37	0.12
UBC 63	36.0	79.65	37.84	0.64	1.08	-3.55	-26.85	0.5

💡 Note: The % column shows the percentage of members that HSC 1323 shares with each listed object.

Visualization

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