CWNU 1918

0.41 UTI

0.3

C_N

0.87

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 30

Core radius and density 1.0 [pc], 4.3 [pc^-2]

C3 classification AB

C_N 0.3 Poorly populated
C_dens 0.87 Dense
C_C3 0.75 High quality
C_lit 0.06 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 1918 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, metal-rich, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Distant High extinction Massive Metal-rich Young

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.04 (50th percentile).

Data

🔍 Search references for CWNU 1918 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–	296.555	24.892	0.223	-2.587	-5.113	-23.565
Hunt & Reffert	2024	296.557	24.893	0.191	-2.565	-5.132	-9.23
Cavallo et al.	2024	296.562	24.882	0.196	–	–	–
Hunt & Reffert	2023	296.557	24.893	0.191	-2.565	-5.132	-9.23
He et al.	2023	296.555	24.894	0.261	-2.588	-5.105	–

💡 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–	4.56	3.99	2.91	39	0.530	1656	–	–
Hunt & Reffert	2024	4.37	3.99	2.91	41	–	1656⁽¹⁾	–	–
Cavallo et al.	2024	4.74	3.50	–	37	0.530	–	–	–
Hunt & Reffert	2023	4.38	3.99	2.91	41	–	–	–	–
He et al.	2023	5.25	4.20	–	3	–	–	–	–

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

Visualization

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