CWNU 1101

(OCSN 175)

0.19 UTI

0.28

C_N

0.17

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 28

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification BB

C_N 0.28 Poorly populated
C_dens 0.17 Very loose
C_C3 0.5 Intermediate 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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CWNU 1101 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a young cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a significant 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 close Low extinction Young

Data

🔍 Search references for CWNU 1101 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–	130.238	-47.933	2.412	-10.48	2.055	11.157
Qin et al.	2023	130.41	-46.45	2.43	-10.61	1.95	11.72
He et al.	2022	130.402	-47.691	2.438	-10.547	2.042	–

💡 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–	0.45	0.415	–	35	–	–	–	–
Qin et al.	2023	0.45	0.28	–	35	–	–	–	–
He et al.	2022	–	0.55	–	35	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 1918	71.4	129.26	-48.13	2.45	-10.48	2.24	11.52	0.03

💡 Note: The % column shows the percentage of members that CWNU 1101 shares with each listed object.

Visualization

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