FSR 0558

(MWSC 157)

0.56 UTI

0.77

C_N

0.46

C_dens

0.75

C_C3

0.42

C_lit

1.0

C_dup

N_m (P>50%) 153

Core radius and density 2.4 [pc], 2.3 [pc^-2]

C3 classification AB

C_N 0.77 Rich
C_dens 0.46 Loose
C_C3 0.75 High quality
C_lit 0.42 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 0558 is a rich, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is poorly studied in the literature.

Relatively close High extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.78 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.154, e_all=0.0816.

Data

🔍 Search references for FSR 0558 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–	30.183	67.797	0.32	-1.053	0.74	-51.15
Hunt & Reffert	2024	30.147	67.792	0.338	-1.058	0.718	-26.688
Cavallo et al.	2024	30.185	67.793	0.336	–	–	–
Hunt & Reffert	2023	30.147	67.792	0.338	-1.058	0.718	-26.688
Just et al.	2023	30.117	67.801	–	–	–	–
Jadhav & Subramaniam	2021	30.191	67.799	–	–	–	–
Cantat-Gaudin et al.	2020	30.191	67.799	0.314	-1.024	0.794	–
Cantat-Gaudin & Anders	2020	30.191	67.799	0.314	-1.024	0.794	–
Soubiran et al.	2018	30.191	67.799	–	–	–	-48.85
Bica et al.	2019	30.198	67.803	–	–	–	–
Cantat-Gaudin et al.	2018	30.191	67.799	0.314	-1.024	0.794	–
Kharchenko et al.	2016	30.117	67.801	–	–	–	–
Kharchenko et al.	2013	30.13	67.803	–	-2.89	-1.47	–
Kharchenko et al.	2012	30.13	67.803	–	-2.89	-1.47	–
Froebrich et al.	2007	30.188	67.806	–	–	–	–

💡 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–	2.91	3.15	2.69	584	0.400	679	–	0
Hunt & Reffert	2024	2.77	3.92	2.69	129	–	1428⁽¹⁾	–	–
Cavallo et al.	2024	3.70	3.97	–	71	0.400	–	–	–
Hunt & Reffert	2023	2.77	3.92	2.69	129	–	–	–	–
Just et al.	2023	–	–	–	631	–	136	–	–
Jadhav & Subramaniam	2021	2.91	2.52	–	537	–	679	–	0⁽¹⁾
Cantat-Gaudin et al.	2020	2.91	2.52	–	537	–	–	–	–
Kounkel et al.	2020	3.17	2.51	–	1202	–	–	–	–
Cantat-Gaudin & Anders	2020	2.92	–	–	–	–	–	–	–
Soubiran et al.	2018	2.92	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	2.92	–	–	–	–	–	–	–
Kharchenko et al.	2016	2.50	3.15	–	631	–	–	–	–
Kharchenko et al.	2013	2.50	3.15	–	631	–	–	–	–
Kharchenko et al.	2012	2.50	3.15	–	631	–	–	–	–

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

Visualization

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