FSR 1203

(MWSC 1319)

0.18 UTI

0.0

C_N

0.04

C_dens

0.25

C_C3

0.31

C_lit

1.0

C_dup

C3 classification CC

Number of members (P>50%) 21

Radius (P>50% members) 7.5 [arcmin]

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.25 Low quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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FSR 1203 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well above the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.69 kpc) differs significantly from the median photometric distance (~1.94 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 Low extinction Old

Data

🔍 Search references for FSR 1203 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	–	115.982	-8.052	0.213	-1.723	1.645	76.054
Just et al.	2023	115.915	-8.018	–	–	–	–
Bica et al.	2019	115.966	-8.018	–	–	–	–
Kharchenko et al.	2016	115.915	-8.018	–	–	–	–
Kharchenko et al.	2013	115.921	-8.02	–	1.62	1.08	–
Froebrich et al.	2007	115.958	-8.015	–	–	–	–

💡 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	–	–	–	1841	–	212	–	–
Kharchenko et al.	2016	1.94	0.64	–	1841	–	–	–	–
Kharchenko et al.	2013	1.94	0.64	–	1841	–	–	–	–

Visualization

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