HSC 988

0.12 UTI

0.0

C_N

0.21

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

C3 classification CB

Number of members (P>50%) 23

Radius (P>50% members) 2.7 [arcmin]

C_N 0.0 Sparse
C_dens 0.21 Very loose
C_C3 0.38 Low 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 988 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, 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.

Very distant High extinction Massive Very young

Data

🔍 Search references for HSC 988 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	–	15.299	65.189	0.168	-1.709	-0.444	–
Hunt & Reffert	2024	15.305	65.186	0.163	-1.703	-0.438	–
Hunt & Reffert	2023	15.305	65.186	0.163	-1.703	-0.438	–

💡 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	–	–	–	–	–	1804*	–	–
Hunt & Reffert	2023	5.96	3.96	1.41	8	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3532	84.0	15.3	65.2	0.17	-1.73	-0.44	–	0.02

💡 Note: The % column shows the percentage of members that HSC 988 shares with each listed object.

Visualization

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