FSR 0833

(MWSC 726)

0.43 UTI

0.55

C_N

0.08

C_dens

0.62

C_C3

0.45

C_lit

1.0

C_dup

N_m (P>50%) 60

Core radius and density 4.7 [pc], 0.4 [pc^-2]

C3 classification AC

C_N 0.55 Moderately populated
C_dens 0.08 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.45 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 0833 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

Distant Moderate extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.89 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.89 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.2369, e_all=0.0905.

Data

🔍 Search references for FSR 0833 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–	91.315	30.848	0.191	-0.063	-0.798	–
Almeida et al.	2025	91.334	30.828	–	–	–	–
Hunt & Reffert	2024	91.315	30.803	0.198	-0.067	-0.796	–
Celli et al.	2024	91.32	30.827	–	–	–	–
Cavallo et al.	2024	91.333	30.85	0.199	–	–	–
Hunt & Reffert	2023	91.315	30.803	0.198	-0.067	-0.796	–
Just et al.	2023	91.34	30.794	–	–	–	–
Dias et al.	2021	91.334	30.828	0.189	-0.06	-0.814	–
Cantat-Gaudin et al.	2020	91.32	30.827	0.186	-0.036	-0.807	–
Zhong et al.	2020	91.32	30.827	–	-0.036	-0.807	-0.116
Cantat-Gaudin & Anders	2020	91.32	30.827	0.186	-0.036	-0.807	–
Cantat-Gaudin et al.	2018	91.32	30.827	0.186	-0.036	-0.807	–
Kharchenko et al.	2016	91.34	30.794	–	–	–	–
Kharchenko et al.	2013	91.35	30.793	–	-0.43	-4.15	–
Camargo et al.	2012	91.312	30.799	–	–	–	–
Froebrich et al.	2007	91.321	30.793	–	–	–	–

💡 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–	4.23	1.685	1.33	49	-0.172	220	–	–
Almeida et al.	2025	2.87	1.55	–	49	–	211	–	–
Hunt & Reffert	2024	4.35	1.83	1.33	17	–	434⁽¹⁾	–	–
Celli et al.	2024	–	–	–	17	–	230	–	–
Cavallo et al.	2024	2.96	1.58	–	54	-0.200	–	–	–
Hunt & Reffert	2023	4.36	1.83	1.33	17	–	–	–	–
Just et al.	2023	–	–	–	1259	–	106	–	–
Dias et al.	2021	2.87	1.55	–	49	-0.172	–	–	–
Cantat-Gaudin et al.	2020	4.83	1.36	–	17	–	–	–	–
Kounkel et al.	2020	4.23	1.37	–	389	–	–	–	–
Zhong et al.	2020	4.65⁽¹⁾	–	–	–	0.000	–	–	–
Cantat-Gaudin & Anders	2020	4.65	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	4.65	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.09	1.97	–	1259	–	–	–	–
Kharchenko et al.	2013	2.09	1.97	–	1259	–	–	–	–
Camargo et al.	2012	2.89	1.79	–	3	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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