FSR 0305

(MWSC 3565)

0.23 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.38

C_lit

1.0

C_dup

C3 classification BC

Number of members (P>50%) 11

Radius (P>50% members) 9.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.38 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 0305 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.69 kpc) differs significantly from the median photometric distance (~2.44 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 Moderate extinction Low mass Old

Data

🔍 Search references for FSR 0305 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	–	327.62	47.017	0.271	-3.634	-2.757	–
Just et al.	2023	327.628	47.017	–	–	–	–
Bica et al.	2019	327.66	47.034	–	–	–	–
Kharchenko et al.	2016	327.628	47.017	–	–	–	–
Kharchenko et al.	2013	327.633	47.02	–	-3.79	-1.11	–
Kharchenko et al.	2012	327.633	47.02	–	-3.79	-1.11	–
Froebrich et al.	2007	327.658	47.029	–	–	–	–

💡 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	–	–	–	1148	–	49	–	–
Kharchenko et al.	2016	2.44	1.55	–	1148	–	–	–	–
Kharchenko et al.	2013	2.44	1.55	–	1148	–	–	–	–
Kharchenko et al.	2012	2.44	1.55	–	1148	–	–	–	–

Visualization

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