MWSC 4178

0.14 UTI

0.0

C_N

0.06

C_dens

0.12

C_C3

0.25

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 18

Radius (P>50% members) 6.5 [arcmin]

C_N 0.0 Sparse
C_dens 0.06 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 4178 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, well above the mid-plane, affected by low extinction. It is catalogued as a very massive, old cluster (see Parameters). It is poorly studied in the literature.

⚠️ 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.

Distant Low extinction Very massive Old

Data

🔍 Search references for MWSC 4178 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	–	216.929	-44.926	0.248	-9.523	-1.342	-63.609
Just et al.	2023	216.898	-44.943	–	–	–	–
Bica et al.	2019	216.912	-44.946	–	–	–	–
Kharchenko et al.	2016	216.898	-44.943	–	–	–	–
Scholz et al.	2015	216.907	-44.945	–	-3.98	-3.61	–

💡 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	–	–	–	1995	–	5200	–	–
Kharchenko et al.	2016	3.52	0.68	–	1995	–	–	–	–
Scholz et al.	2015	3.52	0.68	–	1995	–	–	–	–

Visualization

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