FSR 1387

(SAI 89; MWSC 1486)

0.21 UTI

0.0

C_N

0.36

C_dens

0.5

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 1.4 [pc], 1.8 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.36 Loose
C_C3 0.5 Intermediate quality
C_lit 0.1 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 1387 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a large^* distance, below the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 7 years.

(*): The parallax distance estimate (~5.41 kpc) differs significantly from the median photometric distance (~1.26 kpc).

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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 Old

Data

🔍 Search references for FSR 1387 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–	126.103	-39.94	0.185	-2.595	3.282	207.082
Bica et al.	2019	126.108	-39.94	–	–	–	–
Dib et al.	2018	126.129	-39.905	–	–	–	–
Joshi et al.	2016	126.129	-39.905	–	–	–	–
Glushkova et al.	2010	126.105	-39.936	–	–	–	–
Froebrich et al.	2007	126.108	-39.922	–	–	–	–

💡 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–	1.26	2.86	–	1047	–	–	–	–
Dib et al.	2018	1.26	–	–	1047	–	–	–	–
Joshi et al.	2016	1.26	1.97	–	1047	–	–	–	–
Glushkova et al.	2010	2.31	3.75	–	631	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3174	80.0	126.11	-39.94	0.18	-2.6	3.24	207.08	0.04

💡 Note: The % column shows the percentage of members that FSR 1387 shares with each listed object.

Visualization

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