MWSC 4131

0.15 UTI

0.27

C_N

0.0

C_dens

0.5

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 27

Stellar density (N₅₀/rad) 0.0 [N/pc²]

C3 classification BB

C_N 0.27 Poorly populated
C_dens 0.0 Very loose
C_C3 0.5 Intermediate 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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MWSC 4131 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a very large^* distance, well above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~21.51 kpc) differs significantly from the median photometric distance (~1.06 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 Old

Data

🔍 Search references for MWSC 4131 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–	124.828	42.05	0.046	0.166	-0.629	–
Just et al.	2023	124.814	42.037	–	–	–	–
Bica et al.	2019	124.82	42.033	–	–	–	–
Scholz et al.	2015	124.822	42.035	–	-1.05	-7.67	–

💡 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–	1.06	0.26	–	2512	–	103	–	–
Just et al.	2023	–	–	–	2512	–	103	–	–
Scholz et al.	2015	1.06	0.26	–	2512	–	–	–	–

Visualization

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