MWSC 4005

0.19 UTI

0.28

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%) 28

Radius (P>50% members) 7.3 [arcmin]

C_N 0.28 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

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MWSC 4005 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as a low-mass, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.22 kpc) differs significantly from the median photometric distance (~1.16 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.

Relatively close Low extinction Low mass Old

Data

🔍 Search references for MWSC 4005 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	–	2.906	-85.464	0.237	1.245	-0.571	–
Just et al.	2023	2.876	-85.484	–	–	–	–
Bica et al.	2019	2.892	-85.477	–	–	–	–
Kharchenko et al.	2016	2.876	-85.484	–	–	–	–
Scholz et al.	2015	2.865	-85.48	–	9.31	-1.47	–

💡 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	–	–	–	2371	–	38	–	–
Kharchenko et al.	2016	1.16	0.78	–	2371	–	–	–	–
Scholz et al.	2015	1.16	0.78	–	2371	–	–	–	–

Visualization

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