HSC 742

0.07 UTI

0.0

C_N

0.04

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 3.6 [pc], 0.2 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.04 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 742 is a sparse, very loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as a low-mass, metal-rich, young 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.

Relatively close Low extinction Low mass Metal-rich Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for HSC 742 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–	308.291	59.569	0.822	-1.536	-4.32	-7.555
Hunt & Reffert	2024	308.262	59.708	0.812	-1.521	-4.303	-7.566
Cavallo et al.	2024	308.383	59.587	0.809	–	–	–
Hunt & Reffert	2023	308.262	59.708	0.812	-1.521	-4.303	-7.566

💡 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–	1.2	0.78	0.81	69	0.620	43	–	–
Hunt & Reffert	2024	1.20	0.78	0.81	69	–	43⁽¹⁾	–	–
Cavallo et al.	2024	1.26	0.63	–	209	0.620	–	–	–
Hunt & Reffert	2023	1.20	0.78	0.81	69	–	–	–	–

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

Visualization

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