FSR 1697

(MWSC 2274)

0.16 UTI

0.0

C_N

0.02

C_dens

0.38

C_C3

0.19

C_lit

1.0

C_dup

N_m (P>50%) 12

Core radius and density 5.3 [pc], 0.1 [pc^-2]

C3 classification BC

C_N 0.0 Sparse
C_dens 0.02 Very loose
C_C3 0.38 Low quality
C_lit 0.19 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 1697 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~3.20 kpc) differs significantly from the median photometric distance (~0.91 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.

Close Moderate extinction Low mass Intermediate age

Data

🔍 Search references for FSR 1697 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–	226.6	-56.545	0.312	-5.594	-3.811	-13.705
Just et al.	2023	226.664	-56.515	–	–	–	–
Bica et al.	2019	226.672	-56.533	–	–	–	–
Dib et al.	2018	226.675	-56.517	–	–	–	–
Joshi et al.	2016	226.675	-56.517	–	–	–	–
Kharchenko et al.	2016	226.664	-56.515	–	–	–	–
Kharchenko et al.	2013	226.675	-56.517	–	-7.03	2.14	–
Froebrich et al.	2007	226.675	-56.533	–	–	–	–
Dias et al.	2002	226.675	-56.533	–	-14.75	-0.25	–

💡 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–	0.91	1.97	–	115	–	18	–	–
Just et al.	2023	–	–	–	115	–	18	–	–
Dib et al.	2018	0.91	–	–	115	–	–	–	–
Joshi et al.	2016	0.91	1.97	–	115	–	–	–	–
Kharchenko et al.	2016	0.91	1.97	–	115	–	–	–	–
Kharchenko et al.	2013	0.91	1.97	–	115	–	–	–	–
Dias et al.	2002	0.91	1.97	–	115	–	–	–	–

Visualization

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