CWWDL 8509

0.07 UTI

0.0

C_N

0.04

C_dens

0.38

C_C3

0.0

C_lit

0.84

C_dup

C3 classification CB

Number of members (P>50%) 18

Radius (P>50% members) 11.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.84 Very likely unique

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

Overview

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CWWDL 8509 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry, and a small percentage with at least one entry reported in the same catalogue. See table with shared members information.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=0.84) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Near-solar metallicity Very young

Data

🔍 Search references for CWWDL 8509 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	–	37.292	59.482	0.368	-0.026	-0.591	–
Chi et al.	2023	37.134	59.506	0.375	0.002	-0.589	–

💡 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
Chi et al.	2023	–	–	–	0	0.440	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 2007	20.0	37.43	59.78	0.35	-0.06	-0.49	–	0.06
Ferrero 38	16.0	37.57	59.79	0.34	-0.09	-0.49	-51.17	0.42
UBC 190	12.0	37.43	59.79	0.34	-0.07	-0.49	–	0.12
OC 0249	4.0	37.37	59.83	0.35	-0.07	-0.46	–	0.03

💡 Note: The % column shows the percentage of members that CWWDL 8509 shares with each listed object.

Visualization

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