CWNU 1845

0.32 UTI

0.31

C_N

0.34

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 31

Stellar density (N₅₀/rad) 1.7 [N/pc²]

C3 classification BC

C_N 0.31 Poorly populated
C_dens 0.34 Loose
C_C3 0.38 Low 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 1845 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low 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.

Relatively close Low extinction Near-solar metallicity Intermediate age

Palma et al. (2025)
Classified as optical pair P333, along with HSC_1688.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1845 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–	106.196	0.981	0.504	-1.879	-1.45	30.546
Zhang et al.	2024	106.21	0.952	–	–	–	–
Hunt & Reffert	2024	106.21	0.952	0.517	-1.879	-1.463	46.139
Cavallo et al.	2024	106.187	0.98	0.517	–	–	–
Hunt & Reffert	2023	106.21	0.952	0.517	-1.879	-1.463	46.139
He et al.	2023	106.207	0.96	0.509	-1.879	-1.452	29.98

💡 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–	1.99	0.57	0.8	631	0.089	108	–	–
Zhang et al.	2024	–	–	–	–	-0.081⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	108⁽¹⁾	–	–
Cavallo et al.	2024	1.99	0.57	–	468	0.260	–	–	–
Hunt & Reffert	2023	1.83	0.29	0.80	957	–	–	–	–
He et al.	2023	2.00	0.75	–	631	–	–	–	–

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

Visualization

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