FSR 0440

(MWSC 3775)

0.23 UTI

0.0

C_N

0.04

C_dens

0.38

C_C3

0.38

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 18

Radius (P>50% members) 4.8 [arcmin]

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.38 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 0440 is a sparse, very loose object of low C3 quality. Its parallax locates it at a 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.

⚠️ 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 Old

Data

🔍 Search references for FSR 0440 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	–	358.6	50.189	0.149	-1.432	-1.295	-104.497
Just et al.	2023	358.644	50.139	–	–	–	–
Bica et al.	2019	358.648	50.118	–	–	–	–
Kharchenko et al.	2016	358.644	50.139	–	–	–	–
Kharchenko et al.	2013	358.651	50.142	–	-2.72	-2.74	–
Kharchenko et al.	2012	358.651	50.142	–	-2.72	-2.74	–
Froebrich et al.	2007	358.642	50.122	–	–	–	–

💡 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	–	724	–	–
Kharchenko et al.	2016	6.66	1.29	–	1259	–	–	–	–
Kharchenko et al.	2013	6.66	1.29	–	1259	–	–	–	–
Kharchenko et al.	2012	6.66	1.29	–	1259	–	–	–	–

Visualization

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