FSR 0538

(MWSC 117)

0.24 UTI

0.0

C_N

0.32

C_dens

0.12

C_C3

0.38

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 23

Radius (P>50% members) 4.3 [arcmin]

C_N 0.0 Sparse
C_dens 0.32 Loose
C_C3 0.12 Very low quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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FSR 0538 is a sparse, loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.04 kpc) differs significantly from the median photometric distance (~2.15 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 Intermediate age

Data

🔍 Search references for FSR 0538 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	–	20.538	63.689	0.329	-2.482	0.005	-18.145
Just et al.	2023	20.501	63.7	–	–	–	–
Kharchenko et al.	2016	20.501	63.7	–	–	–	–
Kharchenko et al.	2013	20.512	63.703	–	-0.95	2.77	–
Kharchenko et al.	2012	20.512	63.703	–	-0.95	2.77	–
Froebrich et al.	2007	20.533	63.693	–	–	–	–
Dias et al.	2002	20.533	63.693	–	-0.95	2.77	–

💡 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]	Bfr	BSS
Just et al.	2023	–	–	–	724	–	214	–	–
Kharchenko et al.	2016	2.15	3.29	–	724	–	–	–	–
Kharchenko et al.	2013	2.15	3.29	–	724	–	–	–	–
Kharchenko et al.	2012	2.15	3.29	–	724	–	–	–	–
Dias et al.	2002	2.15	3.29	–	724	–	–	–	–

Visualization

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