FSR 1440

(MWSC 1201)

0.18 UTI

0.25

C_N

0.01

C_dens

0.38

C_C3

0.13

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 10 [pc], 0.04 [pc^-2]

C3 classification BC

C_N 0.25 Poorly populated
C_dens 0.01 Very loose
C_C3 0.38 Low quality
C_lit 0.13 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 1440 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a large^* distance, well 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 (~6.29 kpc) differs significantly from the median photometric distance (~1.63 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 1440 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–	110.986	-53.924	0.159	-1.319	3.595	116.582
Just et al.	2023	110.903	-53.944	–	–	–	–
Dib et al.	2018	110.905	-53.947	–	–	–	–
Joshi et al.	2016	110.905	-53.947	–	–	–	–
Kharchenko et al.	2016	110.903	-53.944	–	–	–	–
Kharchenko et al.	2013	110.905	-53.947	–	-6.14	4.12	–
Froebrich et al.	2007	110.892	-53.941	–	–	–	–

💡 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–	1.63	1.64	–	575	–	360	–	–
Just et al.	2023	–	–	–	575	–	360	–	–
Dib et al.	2018	1.63	–	–	575	–	–	–	–
Joshi et al.	2016	1.63	1.64	–	575	–	–	–	–
Kharchenko et al.	2016	1.63	1.64	–	575	–	–	–	–
Kharchenko et al.	2013	1.63	1.64	–	575	–	–	–	–

Visualization

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