HSC 1347

0.12 UTI

0.25

C_N

0.2

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.0 [N/pc²]

C3 classification DC

C_N 0.25 Poorly populated
C_dens 0.2 Very loose
C_C3 0.12 Very low 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 1347 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a very 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 absorption parameter (see Parameters). It was recently reported in the literature.

⚠️ 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 close Low extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Part of multiple system G122, along with HSC_1470, HSC_1566, HSC_1684 and HSC_1580.

Cavallo et al. (2024)
Silver sample.

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

Data

🔍 Search references for HSC 1347 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–	69.892	38.742	12.278	34.048	-59.583	3.021
Zhang et al.	2024	75.677	31.342	–	–	–	–
Cavallo et al.	2024	70.288	36.461	12.617	–	–	–
Hunt & Reffert	2023	75.677	31.342	12.584	33.763	-60.014	13.632

💡 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–	0.085	0.575	0.54	454	0.104	–	–	–
Zhang et al.	2024	–	–	–	–	0.029⁽¹⁾	–	–	–
Cavallo et al.	2024	0.08	1.01	–	661	0.180	–	–	–
Hunt & Reffert	2023	0.09	0.14	0.54	247	–	–	–	–

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

Visualization

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