FSR 1566

0.12 UTI

0.25

C_N

0.01

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 4.0 [pc], 0.06 [pc^-2]

C3 classification CC

C_N 0.25 Poorly populated
C_dens 0.01 Very loose
C_C3 0.25 Low quality
C_lit 0.03 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 1566 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large^* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 8 years.

(*): The parallax distance estimate (~5.62 kpc) differs significantly from the median photometric distance (~1.54 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 Low extinction Old

Data

🔍 Search references for FSR 1566 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–	147.736	-72.762	0.178	-6.764	3.706	–
Dib et al.	2018	147.645	-72.762	–	–	–	–
Joshi et al.	2016	147.645	-72.762	–	–	–	–
Froebrich et al.	2007	147.654	-72.762	–	–	–	–

💡 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–	1.54	0.66	–	2692	–	–	–	–
Dib et al.	2018	1.54	–	–	2692	–	–	–	–
Joshi et al.	2016	1.54	0.66	–	2692	–	–	–	–

Visualization

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