FSR 0546

(MWSC 129)

0.20 UTI

0.29

C_N

0.0

C_dens

0.25

C_C3

0.23

C_lit

1.0

C_dup

N_m (P>50%) 29

Core radius and density 16 [pc], 0.02 [pc^-2]

C3 classification CC

C_N 0.29 Poorly populated
C_dens 0.0 Very loose
C_C3 0.25 Low quality
C_lit 0.23 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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FSR 0546 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large^* distance, above the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, old cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~5.99 kpc) differs significantly from the median photometric distance (~2.50 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 High extinction Near-solar metallicity Old

Data

🔍 Search references for FSR 0546 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–	24.428	65.851	0.167	-1.627	0.313	-83.046
Just et al.	2023	24.287	65.847	–	–	–	–
Donor et al.	2020	24.3	65.85	–	-0.57	0.38	-33.4
Bica et al.	2019	24.315	65.856	–	–	–	–
Kharchenko et al.	2016	24.287	65.847	–	–	–	–
Kharchenko et al.	2013	24.3	65.85	–	2.32	0.36	–
Kharchenko et al.	2012	24.3	65.85	–	2.32	0.36	–
Froebrich et al.	2007	24.3	65.858	–	–	–	–
Dias et al.	2002	24.3	65.858	–	2.32	0.36	–

💡 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–	2.5	3.47	–	1000	-0.130	395	–	–
Just et al.	2023	–	–	–	1000	–	395	–	–
Spina et al.	2022	–	–	–	–	-0.130	–	–	–
Donor et al.	2020	–	–	–	–	-0.130	–	–	–
Kharchenko et al.	2016	2.50	3.47	–	1000	–	–	–	–
Kharchenko et al.	2013	2.50	3.47	–	1000	–	–	–	–
Kharchenko et al.	2012	2.50	3.47	–	1000	–	–	–	–
Dias et al.	2002	2.50	3.47	–	1000	–	–	–	–

Visualization

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