FSR 0820

0.03 UTI

0.0

C_N

0.0

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 14

Core radius and density 7.5 [pc], 0.02 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

FSR 0820 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a large^* distance, well below the mid-plane. 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 (~8.50 kpc) differs significantly from the median photometric distance (~1.60 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 Old

Data

🔍 Search references for FSR 0820 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	74.91	23.797	0.118	0.078	-0.545	22.249
Dib et al.	2018	74.854	23.804	–	–	–	–
Froebrich et al.	2007	74.871	23.801	–	–	–	–

💡 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–	1.6	–	–	1778	–	–	–	–
Dib et al.	2018	1.60	–	–	1778	–	–	–	–

Visualization

ℹ️