Ryu 23

0.10 UTI

0.0

C_N

0.12

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 13

Stellar density (N₅₀/rad) 0.6 [N/pc²]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.12 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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Ryu 23 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, below the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 7 years.

⚠️ 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.

No fundamental parameters

Data

🔍 Search references for Ryu 23 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–	244.594	-51.791	0.151	-4.842	-4.21	–
Bica et al.	2019	244.598	-51.781	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.

Visualization

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