FSR 0423

(MWSC 3683)

0.21 UTI

0.0

C_N

0.06

C_dens

0.25

C_C3

0.38

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 18

Radius (P>50% members) 5.0 [arcmin]

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.25 Low quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

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

Overview

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FSR 0423 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large^* distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~5.46 kpc) differs significantly from the median photometric distance (~3.80 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.

Distant High extinction Massive Old

Data

🔍 Search references for FSR 0423 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	–	344.406	65.486	0.183	-2.755	-1.239	-86.251
Just et al.	2023	344.367	65.476	–	–	–	–
Bica et al.	2019	344.385	65.497	–	–	–	–
Kharchenko et al.	2016	344.367	65.476	–	–	–	–
Kharchenko et al.	2013	344.374	65.48	–	-0.87	-2.79	–
Kharchenko et al.	2012	344.374	65.48	–	-0.87	-2.79	–
Froebrich et al.	2007	344.383	65.498	–	–	–	–

💡 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	–	–	–	1259	–	1766	–	–
Kharchenko et al.	2016	3.80	3.25	–	1259	–	–	–	–
Kharchenko et al.	2013	3.80	3.25	–	1259	–	–	–	–
Kharchenko et al.	2012	3.80	3.25	–	1259	–	–	–	–

Visualization

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