FoF 1398

(LP 1398)

0.25 UTI

0.62

C_N

0.16

C_dens

0.62

C_C3

0.0

C_lit

0.89

C_dup

C3 classification AC

Number of members (P>50%) 75

Radius (P>50% members) 7.5 [arcmin]

C_N 0.62 Moderately populated
C_dens 0.16 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 0.89 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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FoF 1398 is a moderately populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: intermediate fit.

Data

🔍 Search references for FoF 1398 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	–	107.198	-5.574	0.225	-0.919	0.714	101.084
Almeida et al.	2025	107.202	-5.596	–	–	–	–
Dias et al.	2021	107.202	-5.596	0.244	-0.93	0.721	68.649

💡 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
Almeida et al.	2025	3.71	1.14	–	50	–	1690	–	–
Dias et al.	2021	3.71	1.14	–	50	-0.108	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 1399	10.7	107.31	-5.35	0.24	-0.86	0.84	65.03	0.03

💡 Note: The % column shows the percentage of members that FoF 1398 shares with each listed object.

Visualization

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