FoF 5

(LP 5)

0.72 UTI

0.76

C_N

0.83

C_dens

1.0

C_C3

0.5

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 130

Radius (P>50% members) 10.0 [arcmin]

C_N 0.76 Rich
C_dens 0.83 Dense
C_C3 1.0 Very high quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

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

Overview

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FoF 5 is a rich, dense object of very high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Old

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit. Gold sample.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for FoF 5 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	–	156.138	-72.526	0.518	-6.883	1.468	-23.217
Hu & Soubiran	2025	156.008	-72.5	–	–	–	–
Almeida et al.	2025	156.06	-72.511	–	–	–	–
Hunt & Reffert	2024	156.323	-72.546	0.525	-6.893	1.485	-22.41
Cavallo et al.	2024	156.008	-72.5	0.524	–	–	–
Hunt & Reffert	2023	156.323	-72.546	0.525	-6.893	1.485	-22.41
Dias et al.	2021	156.06	-72.511	0.515	-6.887	1.468	-22.954
Cantat-Gaudin et al.	2020	156.138	-72.51	0.51	-6.89	1.462	–
Liu & Pang	2019	156.145	-72.508	0.506	-6.873	1.425	–

💡 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
Hu & Soubiran	2025	–	–	–	–	-0.250*	–	–	–
Almeida et al.	2025	1.78	0.33	–	2570	–	967	–	–
Hunt & Reffert	2024	–	–	–	–	–	337*	–	–
Cavallo et al.	2024	1.84	0.27	–	1995	0.280	–	–	–
Hunt & Reffert	2023	1.80	0.12	0.42	2323	–	–	–	–
Dias et al.	2021	1.78	0.33	–	2570	0.004	–	–	–
Cantat-Gaudin et al.	2020	1.84	0.27	–	2692	–	–	–	–
Liu & Pang	2019	–	–	–	3160	0.000	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 274	100.0	156.26	-72.56	0.52	-6.88	1.46	-23.51	0.27
OC 0560	1.5	154.51	-72.17	0.52	-6.87	1.69	-22.78	0.05

💡 Note: The % column shows the percentage of members that FoF 5 shares with each listed object.

Visualization

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