HSC 1053

0.19 UTI

0.38

C_N

0.14

C_dens

0.38

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 38

Core radius and density 2.0 [pc], 0.7 [pc^-2]

C3 classification CB

C_N 0.38 Poorly populated
C_dens 0.14 Very loose
C_C3 0.38 Low quality
C_lit 0.03 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 1053 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (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.

Very distant High extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.33 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.33 (50th percentile).

Data

🔍 Search references for HSC 1053 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–	28.777	62.412	0.156	-1.714	0.275	–
Hunt & Reffert	2024	28.773	62.414	0.157	-1.688	0.268	–
Cavallo et al.	2024	28.792	62.413	0.151	–	–	–
Hunt & Reffert	2023	28.773	62.414	0.157	-1.688	0.268	–

💡 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–	6.01	3.36	2.32	8	0.320	939	–	–
Hunt & Reffert	2024	6.01	3.36	2.32	8	–	939⁽¹⁾	–	–
Cavallo et al.	2024	4.63	2.95	–	16	0.320	–	–	–
Hunt & Reffert	2023	6.01	3.36	2.32	8	–	–	–	–

(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 3033	78.9	28.77	62.41	0.16	-1.72	0.3	–	0.02

💡 Note: The % column shows the percentage of members that HSC 1053 shares with each listed object.

Visualization

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