CWNU 270

0.07 UTI

0.0

C_N

0.09

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 23

Radius (P>50% members) 41.4 [arcmin]

C_N 0.0 Sparse
C_dens 0.09 Very loose
C_C3 0.25 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 270 is a sparse, very loose object of low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a very small percentage of members with a later reported entry. 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.

Close Low extinction Near-solar metallicity Intermediate age

Data

🔍 Search references for CWNU 270 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	–	109.016	-52.222	1.679	-4.243	8.601	15.019
He et al.	2022	108.882	-52.303	1.7	-4.23	8.71	4.6

💡 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	0.58	0.30	–	100	0.274	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 649	4.0	112.56	-51.37	1.53	-4.39	8.45	12.83	0.07

💡 Note: The % column shows the percentage of members that CWNU 270 shares with each listed object.

Visualization

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