FSR 0591

(MWSC 196; LISC 0287)

0.30 UTI

0.0

C_N

0.01

C_dens

0.38

C_C3

0.55

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 9.9 [pc], 0.06 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.38 Low quality
C_lit 0.55 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 0591 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age, metallicity, and mass parameters (see Parameters). It is moderately studied in the literature.

Relatively close Moderate extinction Near-solar metallicity Very young

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

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.57 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.57 (50th percentile).

Data

🔍 Search references for FSR 0591 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–	36.965	58.88	0.309	-0.201	-0.691	–
Yang et al.	2025	36.925	58.771	–	–	–	–
Almeida et al.	2025	36.932	58.763	–	–	–	–
Hunt & Reffert	2024	36.925	58.771	0.331	-0.214	-0.748	-37.063
Cavallo et al.	2024	37.027	58.896	0.331	–	–	–
He et al.	2023	37.051	58.91	0.33	-0.161	-0.738	-63.53
Hunt & Reffert	2023	36.925	58.771	0.331	-0.214	-0.748	-37.063
Almeida et al.	2023	36.932	58.765	–	–	–	–
Just et al.	2023	36.904	58.755	–	–	–	–
Dias et al.	2021	36.932	58.763	0.293	-0.232	-0.562	-72.562
Bica et al.	2019	36.929	58.759	–	–	–	–
Dias et al.	2018	–	–	–	-0.54	-0.57	–
Sampedro et al.	2017	36.933	58.759	–	–	–	–
Kharchenko et al.	2016	36.904	58.755	–	–	–	–
Dias et al.	2014	36.933	58.759	–	0.57	0.35	–
Kharchenko et al.	2013	36.915	58.758	–	-0.98	1.52	–
Kharchenko et al.	2012	36.915	58.758	–	-0.07	0.99	–
Froebrich et al.	2007	36.933	58.759	–	–	–	–
Dias et al.	2002	36.933	58.759	–	0.57	0.35	–

💡 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–	2.72	2.35	2.39	12	-0.187	528	0.55	–
Yang et al.	2025	–	–	–	17	-0.290⁽³⁾	–	–	–
Almeida et al.	2025	2.93	2.27	–	10	–	652	–	–
Hunt & Reffert	2024	2.72	2.47	2.39	17	–	1205⁽¹⁾	–	–
Cavallo et al.	2024	2.92	2.27	–	13	0.320	–	–	–
He et al.	2023	3.55	2.85	–	6	–	–	–	–
Hunt & Reffert	2023	2.72	2.47	2.39	17	–	–	–	–
Almeida et al.	2023	2.35	2.20	–	17	-0.115	403⁽¹⁾	0.55	–
Deng & Li	2023	2.88	2.43	–	0	-0.364	–	–	–
Just et al.	2023	–	–	–	7	–	115	–	–
Dias et al.	2021	2.93	2.27	–	10	-0.187	–	–	–
Kharchenko et al.	2016	2.30	1.91	–	7	–	–	–	–
Kharchenko et al.	2013	2.30	1.91	–	7	–	–	–	–
Kharchenko et al.	2012	2.20	3.94	–	891	–	–	–	–
Dias et al.	2002	2.20	3.94	–	891	–	–	–	–

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

Visualization

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