FSR 0858

(MWSC 755)

0.26 UTI

0.3

C_N

0.07

C_dens

0.12

C_C3

0.4

C_lit

1.0

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification DC

C_N 0.3 Poorly populated
C_dens 0.07 Very loose
C_C3 0.12 Very low quality
C_lit 0.4 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 0858 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.74 kpc) differs significantly from the median photometric distance (~2.13 kpc).

Relatively close Moderate extinction Old

Data

🔍 Search references for FSR 0858 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–	92.274	25.7	0.268	-0.051	-1.475	45.938
Just et al.	2023	92.283	25.681	–	–	–	–
Bica et al.	2019	92.287	25.678	–	–	–	–
Kharchenko et al.	2016	92.283	25.681	–	–	–	–
Dias et al.	2014	92.288	25.677	–	-0.86	-2.68	–
Kharchenko et al.	2013	92.292	25.68	–	0.52	-1.48	–
Froebrich et al.	2007	92.287	25.677	–	–	–	–
Dias et al.	2002	92.287	25.677	–	7.44	-5.06	–

💡 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–	2.13	1.55	–	1012	–	50	–	–
Just et al.	2023	–	–	–	1012	–	50	–	–
Kharchenko et al.	2016	2.13	1.55	–	1012	–	–	–	–
Kharchenko et al.	2013	2.13	1.55	–	1012	–	–	–	–
Dias et al.	2002	2.13	1.55	–	1012	–	–	–	–

Visualization

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