CWNU 2851

0.12 UTI

0.3

C_N

0.18

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 30

Radius (P>50% members) 6.1 [arcmin]

C_N 0.3 Poorly populated
C_dens 0.18 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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CWNU 2851 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as an old cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a very small percentage of members with 2 later reported entries. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close High extinction Old

Data

🔍 Search references for CWNU 2851 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	–	357.068	68.268	0.304	-3.026	0.092	-50.759
He et al.	2023	357.018	68.269	0.353	-3.043	0.123	–

💡 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.	2023	2.75	3.40	–	1778	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3284	6.7	356.83	68.24	0.22	-2.5	-0.07	-75.19	0.08
HSC 936	3.3	356.83	68.25	0.21	-2.51	-0.06	-75.19	0.45

💡 Note: The % column shows the percentage of members that CWNU 2851 shares with each listed object.

Visualization

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