CWNU 1183

0.24 UTI

0.25

C_N

0.32

C_dens

0.75

C_C3

0.29

C_lit

0.64

C_dup

N₅₀ (P>50% members) 25

Stellar density (N₅₀/rad) 1.6 [N/pc²]

C3 classification AB

C_N 0.25 Poorly populated
C_dens 0.32 Loose
C_C3 0.75 High quality
C_lit 0.29 Poorly studied
C_dup 0.64 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 1183 is a poorly populated, loose object of high 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 is poorly studied in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Very close Low extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 100 along with Teutsch_35.

Palma et al. (2025)
Part of multiple system G36, along with Theia_171 and Teutsch_35.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.82 (50th percentile).

Data

🔍 Search references for CWNU 1183 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–	295.927	38.469	2.088	1.422	-0.83	-10.271
Zhang et al.	2024	295.611	38.272	–	–	–	–
Swiggum et al.	2024	295.611	38.272	2.07	1.491	-0.592	-7.526
Cavallo et al.	2024	297.33	39.789	2.075	–	–	–
Hunt & Reffert	2023	295.611	38.272	2.07	1.491	-0.592	-7.079
He et al.	2022	295.669	38.276	2.107	1.325	-1.214	–

💡 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–	0.465	0.105	0.59	46	0.000	154	–	–
Liu et al.	2025	0.46	0.02	–	51	–	–	–	–
Zhang et al.	2024	–	–	–	–	-0.070⁽¹⁾	–	–	–
Swiggum et al.	2024	0.47	–	–	46	–	154	–	–
Cavallo et al.	2024	0.52	0.64	–	21	0.070	–	–	–
Hunt & Reffert	2023	0.46	0.11	0.59	46	–	–	–	–
He et al.	2022	–	0.10	–	45	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 540	36.0	296.62	39.82	2.11	1.47	-0.65	-9.9	0.16

💡 Note: The % column shows the percentage of members that CWNU 1183 shares with each listed object.

Visualization

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