Wit 1

(MWSC 1057)

0.17 UTI

0.0

C_N

0.12

C_dens

0.12

C_C3

0.31

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 16

Radius (P>50% members) 5.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.12 Very loose
C_C3 0.12 Very low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Wit 1 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by moderate extinction. It is catalogued as a very young cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.33 kpc) differs significantly from the median photometric distance (~1.95 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 Very young

Data

🔍 Search references for Wit 1 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	–	105.068	-5.799	0.3	-0.381	-0.544	–
Just et al.	2023	105.087	-5.828	–	–	–	–
Bica et al.	2019	105.087	-5.825	–	–	–	–
Kharchenko et al.	2016	105.087	-5.828	–	–	–	–
Kharchenko et al.	2013	105.094	-5.83	–	-0.38	-1.97	5.0
Dias et al.	2002	105.088	-5.827	–	-0.38	-1.97	5.0

💡 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	–	–	–	2	–	168	–	–
Kharchenko et al.	2016	1.95	1.42	–	2	–	–	–	–
Kharchenko et al.	2013	1.95	1.42	–	2	–	–	–	–
Dias et al.	2002	1.95	1.42	–	2	–	–	–	–

Visualization

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