MWSC 4500

0.30 UTI

0.0

C_N

0.0

C_dens

1.0

C_C3

0.25

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 14

Radius (P>50% members) 9.0 [arcmin]

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 1.0 Very high 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 4500 is a sparse, very loose object of very high C3 quality. Its parallax locates it at a very large^* distance, well below 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 (~30.03 kpc) differs significantly from the median photometric distance (~1.42 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 Moderate extinction Old

Data

🔍 Search references for MWSC 4500 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	293.353	-33.233	0.033	-2.585	-1.565	134.021
Just et al.	2023	293.331	-33.237	–	–	–	–
Bica et al.	2019	293.336	-33.233	–	–	–	–
Kharchenko et al.	2016	293.331	-33.237	–	–	–	–
Scholz et al.	2015	293.34	-33.235	–	6.05	-1.24	–

💡 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	–	–	–	1585	–	158	–	–
Kharchenko et al.	2016	1.42	1.29	–	1585	–	–	–	–
Scholz et al.	2015	1.42	1.29	–	1585	–	–	–	–

Visualization

ℹ️