FSR 0303

(MWSC 3555)

0.19 UTI

0.0

C_N

0.06

C_dens

0.12

C_C3

0.38

C_lit

1.0

C_dup

C3 classification DC

Number of members (P>50%) 19

Radius (P>50% members) 5.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.06 Very 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 0303 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by high extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

⚠️ 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.

Very distant High extinction Intermediate age

Data

🔍 Search references for FSR 0303 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	–	326.235	47.458	0.212	-3.512	-3.701	-56.045
Just et al.	2023	326.218	47.478	–	–	–	–
Bica et al.	2019	326.227	47.498	–	–	–	–
Kharchenko et al.	2016	326.218	47.478	–	–	–	–
Kharchenko et al.	2013	326.224	47.482	–	-2.58	-1.76	–
Kharchenko et al.	2012	326.224	47.482	–	-2.58	-1.76	–
Froebrich et al.	2007	326.225	47.493	–	–	–	–

💡 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	–	–	–	891	–	912	–	–
Kharchenko et al.	2016	6.00	3.10	–	891	–	–	–	–
Kharchenko et al.	2013	6.00	3.10	–	891	–	–	–	–
Kharchenko et al.	2012	6.00	3.10	–	891	–	–	–	–

Visualization

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