MWSC 4218

0.20 UTI

0.31

C_N

0.07

C_dens

0.12

C_C3

0.25

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 31

Radius (P>50% members) 5.5 [arcmin]

C_N 0.31 Poorly populated
C_dens 0.07 Very loose
C_C3 0.12 Very low quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

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

Overview

ℹ️

MWSC 4218 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a large^* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~5.75 kpc) differs significantly from the median photometric distance (~0.99 kpc).

⚠️ 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 Moderate extinction Old

Data

🔍 Search references for MWSC 4218 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	235.136	-33.41	0.174	-6.036	-5.266	–
Just et al.	2023	235.101	-33.474	–	–	–	–
Bica et al.	2019	235.104	-33.476	–	–	–	–
Kharchenko et al.	2016	235.101	-33.474	–	–	–	–
Scholz et al.	2015	235.11	-33.475	–	-5.99	-7.06	–

💡 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
Just et al.	2023	–	–	–	1259	–	80	–	–
Kharchenko et al.	2016	0.99	2.26	–	1259	–	–	–	–
Scholz et al.	2015	0.99	2.26	–	1259	–	–	–	–

Visualization

ℹ️