HSC 1570

0.14 UTI

0.0

C_N

0.08

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AC

Number of members (P>50%) 20

Radius (P>50% members) 4.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 1570 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1570 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	–	94.78	12.89	0.174	0.122	-0.301	–
Hunt & Reffert	2024	94.765	12.876	0.156	0.188	-0.23	46.345
Cavallo et al.	2024	94.816	12.789	0.16	–	–	–
Hunt & Reffert	2023	94.765	12.876	0.156	0.188	-0.23	46.345

💡 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]	Bfr	BSS
Hunt & Reffert	2024	–	–	–	–	–	592*	–	–
Cavallo et al.	2024	4.68	2.51	–	251	0.070	–	–	–
Hunt & Reffert	2023	5.05	2.32	2.17	196	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3957	84.0	94.78	12.88	0.17	0.1	-0.33	–	0.03

💡 Note: The % column shows the percentage of members that HSC 1570 shares with each listed object.

Visualization

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