CWNU 2634

0.63 UTI

0.55

C_N

1.0

C_dens

1.0

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 60

Stellar density (N₅₀/rad) 9.0 [N/pc²]

C3 classification AA

C_N 0.55 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 2634 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, metal-rich, very young cluster, but with a large variance across recent sources for the absorption and age parameters (see Parameters). It was recently reported in the literature.

Distant Moderate extinction Massive Metal-rich Very young

Liu et al. (2025)
Classified as primordial binary cluster 117 along with UBC_1588.

Palma et al. (2025)
Classified as optical pair (not dynamically associated) P204, along with UBC_1588.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 2634 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–	183.68	-61.027	0.248	-7.237	0.548	–
Hunt & Reffert	2024	183.678	-61.026	0.245	-7.213	0.547	-27.856
Cavallo et al.	2024	183.698	-61.043	0.246	–	–	–
Hunt & Reffert	2023	183.678	-61.026	0.245	-7.213	0.547	-27.856
He et al.	2023	183.679	-61.029	0.25	-7.225	0.549	–

💡 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–	3.98	2.7	2.63	19	0.810	1142	–	–
Liu et al.	2025	8.05	0.93	–	26	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1142⁽¹⁾	–	–
Cavallo et al.	2024	3.13	2.44	–	89	0.810	–	–	–
Hunt & Reffert	2023	3.59	2.96	2.63	12	–	–	–	–
He et al.	2023	4.37	3.40	–	6	–	–	–	–

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

Visualization

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