HSC 1173

0.09 UTI

0.0

C_N

0.13

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.9 [pc], 0.7 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.13 Very loose
C_C3 0.25 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 1173 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as a metal-rich, intermediate-age cluster (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.

Distant High extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for HSC 1173 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–	53.16	51.83	0.277	1.796	-1.047	-36.08
Hunt & Reffert	2024	53.161	51.837	0.286	1.768	-1.051	-24.045
Cavallo et al.	2024	53.244	51.824	0.285	–	–	–
Hunt & Reffert	2023	53.161	51.837	0.286	1.768	-1.051	-24.045

💡 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–	3.24	3.03	0.97	229	0.720	139	–	–
Hunt & Reffert	2024	3.24	3.03	0.97	229	–	139⁽¹⁾	–	–
Cavallo et al.	2024	4.43	3.14	–	65	0.720	–	–	–
Hunt & Reffert	2023	3.24	3.03	0.97	229	–	–	–	–

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

Visualization

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