HSC 1309

0.05 UTI

0.0

C_N

0.05

C_dens

0.75

C_C3

0.25

C_lit

0.2

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.05 Very loose
C_C3 0.75 High quality
C_lit 0.25 Poorly 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 1309 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (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.

Distant Moderate extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1309 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–	81.287	40.926	0.2	0.168	-0.259	–
Zhang et al.	2024	81.281	40.968	–	–	–	–
Hunt & Reffert	2024	81.281	40.968	0.198	0.179	-0.257	-12.764
Cavallo et al.	2024	81.26	40.986	0.199	–	–	–
Hunt & Reffert	2023	81.281	40.968	0.198	0.179	-0.257	-12.764

💡 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–	3.915	1.915	2.19	96	-0.196	1375	–	–
Zhang et al.	2024	–	–	–	–	0.009⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1375⁽¹⁾	–	–
Cavallo et al.	2024	3.60	2.23	–	37	-0.400	–	–	–
Hunt & Reffert	2023	4.23	1.60	2.19	156	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 2036	80.0	81.26	40.93	0.21	0.21	-0.25	8.93	0.27

💡 Note: The % column shows the percentage of members that HSC 1309 shares with each listed object.

Visualization

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