FSR 1756

(MWSC 2475)

0.19 UTI

0.0

C_N

0.06

C_dens

0.25

C_C3

0.31

C_lit

1.0

C_dup

C3 classification DB

Number of members (P>50%) 13

Radius (P>50% members) 5.1 [arcmin]

C_N 0.0 Sparse
C_dens 0.06 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 1756 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by high extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.49 kpc) differs significantly from the median photometric distance (~2.53 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 High extinction Old

Data

🔍 Search references for FSR 1756 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	–	253.016	-34.955	0.223	-4.598	-3.686	-103.634
Just et al.	2023	253.01	-34.946	–	–	–	–
Bica et al.	2019	253.028	-34.942	–	–	–	–
Kharchenko et al.	2016	253.01	-34.946	–	–	–	–
Kharchenko et al.	2013	253.02	-34.946	–	0.79	-4.19	–
Froebrich et al.	2007	253.029	-34.946	–	–	–	–

💡 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	–	–	–	2371	–	217	–	–
Kharchenko et al.	2016	2.53	4.65	–	2371	–	–	–	–
Kharchenko et al.	2013	2.53	4.65	–	2371	–	–	–	–

Visualization

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