HSC 652

0.18 UTI

0.0

C_N

0.4

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 20

Radius (P>50% members) 3.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.4 Loose
C_C3 0.5 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 652 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by very high extinction. It is catalogued as a 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.

Distant Very high extinction Very young

Data

🔍 Search references for HSC 652 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	–	311.14	44.009	0.285	-2.457	-3.205	-19.864
Hunt & Reffert	2024	311.14	44.014	0.274	-2.432	-3.192	–
Hunt & Reffert	2023	311.14	44.014	0.274	-2.432	-3.192	–

💡 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	–	–	–	–	–	761*	–	–
Hunt & Reffert	2023	3.31	6.28	1.78	13	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 4430	88.0	311.14	43.97	0.29	-2.46	-3.21	-27.06	0.07

💡 Note: The % column shows the percentage of members that HSC 652 shares with each listed object.

Visualization

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