FSR 0656

(MWSC 320)

0.21 UTI

0.35

C_N

0.01

C_dens

0.25

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 35

Core radius and density 7.2 [pc], 0.05 [pc^-2]

C3 classification CC

C_N 0.35 Poorly populated
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.23 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 0656 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.82 kpc) differs significantly from the median photometric distance (~1.40 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 Near-solar metallicity Intermediate age

Data

🔍 Search references for FSR 0656 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–	59.723	53.629	0.207	0.03	-0.599	-36.55
Donor et al.	2020	59.715	53.64	–	1.7	-0.6	-43.6
Bica et al.	2019	59.717	53.631	–	–	–	–
Dib et al.	2018	59.715	53.64	–	–	–	–
Sampedro et al.	2017	59.721	53.632	–	–	–	–
Joshi et al.	2016	59.715	53.64	–	–	–	–
Dias et al.	2014	59.721	53.632	–	-0.04	-1.53	–
Froebrich et al.	2007	59.721	53.632	–	–	–	–
Dias et al.	2002	59.721	53.632	–	-0.1	-1.84	–

💡 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–	1.4	2.99	–	785	-0.320	–	–	–
Spina et al.	2022	–	–	–	–	-0.320	–	–	–
Donor et al.	2020	–	–	–	–	-0.320	–	–	–
Dib et al.	2018	1.40	–	–	785	–	–	–	–
Joshi et al.	2016	1.40	2.99	–	785	–	–	–	–
Dias et al.	2002	1.40	2.99	–	785	–	–	–	–

Visualization

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