CWNU 2636

0.35 UTI

0.43

C_N

0.77

C_dens

0.38

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 43

Core radius and density 1.2 [pc], 3.9 [pc^-2]

C3 classification CB

C_N 0.43 Poorly populated
C_dens 0.77 Dense
C_C3 0.38 Low quality
C_lit 0.1 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 2636 is a poorly populated, dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for CWNU 2636 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–	84.472	37.211	0.255	0.335	-1.433	23.423
Hu & Soubiran	2025	84.477	37.222	–	–	–	–
Hunt & Reffert	2024	84.474	37.21	0.266	0.368	-1.484	12.098
Cavallo et al.	2024	84.477	37.222	0.266	–	–	–
Hunt & Reffert	2023	84.474	37.21	0.266	0.368	-1.484	12.098
He et al.	2023	84.476	37.215	0.29	0.343	-1.485	11.62

💡 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–	3.305	1.79	1.94	450	-0.085	793	–	–
Hu & Soubiran	2025	–	–	–	–	-0.290⁽⁵⁾	–	–	–
Hunt & Reffert	2024	3.48	1.81	1.94	339	–	793⁽¹⁾	–	–
Cavallo et al.	2024	3.13	1.77	–	603	0.120	–	–	–
Hunt & Reffert	2023	3.48	1.81	1.94	339	–	–	–	–
He et al.	2023	2.95	1.30	–	562	–	–	–	–

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

Visualization

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