CWWL 2091

0.13 UTI

0.48

C_N

0.04

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 48

Stellar density (N₅₀/rad) 0.2 [N/pc²]

C3 classification DC

C_N 0.48 Poorly populated
C_dens 0.04 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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CWWL 2091 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane. It is catalogued as a metal-poor, old cluster (see Parameters). It was recently reported 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.

Metal-poor Old

Data

🔍 Search references for CWWL 2091 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–	120.048	-24.128	0.22	-1.95	1.789	71.706
Chi et al.	2023	120.071	-24.196	0.258	-1.939	1.799	–

💡 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–	–	–	–	1400	-0.642	–	–	–
Chi et al.	2023	–	–	–	1400	-0.642	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CKCWDM 54493	2.1	119.95	-24.39	0.18	-1.67	2.0	108.83	0.05

💡 Note: The % column shows the percentage of members that CWWL 2091 shares with each listed object.

Visualization

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