MWSC 4545

0.24 UTI

0.27

C_N

0.18

C_dens

0.25

C_C3

0.25

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 27

Radius (P>50% members) 6.7 [arcmin]

C_N 0.27 Poorly populated
C_dens 0.18 Very loose
C_C3 0.25 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 4545 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~2.81 kpc) differs significantly from the median photometric distance (~1.07 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 4545 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	–	301.933	-49.845	0.356	-0.844	-4.197	–
Just et al.	2023	301.947	-49.863	–	–	–	–
Bica et al.	2019	301.954	-49.861	–	–	–	–
Kharchenko et al.	2016	301.947	-49.863	–	–	–	–
Scholz et al.	2015	301.957	-49.86	–	1.89	-3.66	–

💡 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	–	–	–	2042	–	69	–	–
Kharchenko et al.	2016	1.07	0.52	–	2042	–	–	–	–
Scholz et al.	2015	1.07	0.52	–	2042	–	–	–	–

Visualization

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