FSR 0253

(MWSC 3457)

0.12 UTI

0.0

C_N

0.03

C_dens

0.25

C_C3

0.16

C_lit

1.0

C_dup

N_m (P>50%) 16

Core radius and density 2.5 [pc], 0.1 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.25 Low quality
C_lit 0.16 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 0253 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 an intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~4.14 kpc) differs significantly from the median photometric distance (~1.41 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 Intermediate age

Data

🔍 Search references for FSR 0253 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–	315.895	39.973	0.241	-1.756	-2.308	-12.034
Just et al.	2023	315.873	39.977	–	–	–	–
Bica et al.	2019	315.876	39.964	–	–	–	–
Dib et al.	2018	315.877	39.98	–	–	–	–
Joshi et al.	2016	315.877	39.98	–	–	–	–
Kharchenko et al.	2016	315.873	39.977	–	–	–	–
Kharchenko et al.	2013	315.877	39.98	–	-3.72	-0.62	-11.9
Froebrich et al.	2007	315.871	39.968	–	–	–	–

💡 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–	1.41	2.23	–	188	–	161	–	–
Just et al.	2023	–	–	–	188	–	161	–	–
Dib et al.	2018	1.41	–	–	188	–	–	–	–
Joshi et al.	2016	1.41	2.23	–	188	–	–	–	–
Kharchenko et al.	2016	1.41	2.23	–	188	–	–	–	–
Kharchenko et al.	2013	1.41	2.23	–	188	–	–	–	–

Visualization

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