HSC 572

0.17 UTI

0.25

C_N

0.22

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.1 [N/pc²]

C3 classification CB

C_N 0.25 Poorly populated
C_dens 0.22 Very loose
C_C3 0.38 Low quality
C_lit 0.0 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 572 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a very close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It was recently reported in the literature.

Note: This object shares a moderate percentage of members with at least one entry reported in the same catalogue. 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 close Low extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for HSC 572 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–	290.939	40.636	3.183	-3.887	3.06	-24.653
Zhang et al.	2024	290.682	40.622	–	–	–	–
Cavallo et al.	2024	290.459	39.919	3.121	–	–	–
Hunt & Reffert	2023	290.682	40.622	3.127	-3.919	2.878	-23.896

💡 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–	0.32	0.24	0.35	76	0.038	–	–	–
Zhang et al.	2024	–	–	–	–	0.036⁽¹⁾	–	–	–
Cavallo et al.	2024	0.33	0.46	–	47	0.040	–	–	–
Hunt & Reffert	2023	0.31	0.02	0.35	104	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 569	28.0	289.3	40.62	3.44	-4.7	3.3	-22.33	0.16

💡 Note: The % column shows the percentage of members that HSC 572 shares with each listed object.

Visualization

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