HSC 1480

0.22 UTI

0.27

C_N

0.06

C_dens

0.62

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 27

Core radius and density 2.1 [pc], 0.3 [pc^-2]

C3 classification AC

C_N 0.27 Poorly populated
C_dens 0.06 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.06 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 1480 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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.

Distant Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.66 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.66 (50th percentile), true positive (human-assigned).

Data

🔍 Search references for HSC 1480 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–	91.414	23.516	0.171	0.266	-0.416	–
Zhang et al.	2024	91.429	23.511	–	–	–	–
Hunt & Reffert	2024	91.429	23.511	0.185	0.274	-0.429	–
Cavallo et al.	2024	91.411	23.506	0.185	–	–	–
Hunt & Reffert	2023	91.429	23.511	0.185	0.274	-0.429	–

💡 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–	4.68	2.08	2.505	44	0.300	688	–	–
Hunt & Reffert	2024	4.68	2.08	2.51	44	–	688⁽¹⁾	–	–
Cavallo et al.	2024	4.13	1.37	–	263	0.300	–	–	–
Hunt & Reffert	2023	4.68	2.08	2.50	44	–	–	–	–

(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 4050	92.6	91.4	23.51	0.17	0.25	-0.42	–	0.03

💡 Note: The % column shows the percentage of members that HSC 1480 shares with each listed object.

Visualization

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