CWNU 55

0.08 UTI

0.5

C_N

0.59

C_dens

0.62

C_C3

0.0

C_lit

0.24

C_dup

C3 classification AC

Number of members (P>50%) 51

Radius (P>50% members) 11.5 [arcmin]

C_N 0.5 Moderately populated
C_dens 0.59 Moderately dense
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.24 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWNU 55 is a moderately populated, moderately dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for CWNU 55 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	–	20.816	65.363	0.803	3.541	-1.158	-40.772
He et al.	2022	20.916	65.356	0.807	3.527	-1.155	–
He et al.	2022	20.821	65.386	0.8	3.54	-1.16	-35.5

💡 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]	Bfr	BSS
He et al.	2022	–	2.95	–	447	–	–	–	–
He et al.	2022	1.05	2.28	–	794	0.274	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 6599	84.3	20.82	65.39	0.8	3.54	-1.16	-41.73	0.03
OC 0234	76.5	20.87	65.39	0.8	3.52	-1.16	-40.78	0.35

💡 Note: The % column shows the percentage of members that CWNU 55 shares with each listed object.

Visualization

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