FSR 0405

(MWSC 3634)

0.19 UTI

0.0

C_N

0.08

C_dens

0.25

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 0.4 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.08 Very loose
C_C3 0.25 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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FSR 0405 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, well above the mid-plane, affected by moderate extinction. It is catalogued as a 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.

Very distant Moderate extinction Massive Old

Data

🔍 Search references for FSR 0405 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	99999–	338.18	66.661	0.176	-3.165	-1.416	-101.985
Just et al.	2023	338.192	66.666	–	–	–	–
Kharchenko et al.	2016	338.192	66.666	–	–	–	–
Kharchenko et al.	2013	338.197	66.67	–	-2.81	-1.84	–
Kharchenko et al.	2012	338.197	66.67	–	-2.81	-1.84	–
Froebrich et al.	2007	338.146	66.636	–	–	–	–

💡 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]	B_frac	BSS
UCC	99999–	5.21	2.06	–	1995	–	2818	–	–
Just et al.	2023	–	–	–	1995	–	2818	–	–
Kharchenko et al.	2016	5.21	2.06	–	1995	–	–	–	–
Kharchenko et al.	2013	5.21	2.06	–	1995	–	–	–	–
Kharchenko et al.	2012	5.21	2.06	–	1995	–	–	–	–

Visualization

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