FoF 658

(LP 658)

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0.78 UTI
0.76
CN
1.0
Cdens
0.75
CC3
0.7
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 133
Radius (P>50% members) 7.3 [arcmin]
  • CN 0.76 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.7 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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FoF 658 is a rich, very dense object of 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.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for FoF 658 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 – 95.267 -3.453 0.674 -1.484 1.6 23.585
Li et al. 2025 95.274 -3.431 0.673 -1.458 1.613 –
Hu & Soubiran 2025 95.275 -3.453 – – – –
Almeida et al. 2025 95.263 -3.405 – – – –
Zhang et al. 2024 95.272 -3.468 – – – –
Hunt & Reffert 2024 95.272 -3.468 0.677 -1.488 1.619 22.77
Cavallo et al. 2024 95.275 -3.453 0.677 – – –
Hunt & Reffert 2023 95.272 -3.468 0.677 -1.488 1.619 22.77
Almeida et al. 2023 95.304 -3.395 – – – –
Tarricq et al. 2022 95.263 -3.487 0.668 -1.489 1.579 –
Dias et al. 2021 95.263 -3.405 0.675 -1.472 1.601 27.375
Cantat-Gaudin et al. 2020 95.274 -3.431 0.673 -1.458 1.613 –
Liu & Pang 2019 95.244 -3.415 0.67 -1.495 1.579 –

💡 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
Li et al. 2025 1.47 0.61 – 992 0.052 – – –
Hu & Soubiran 2025 – – – – -0.220* – – –
Almeida et al. 2025 1.36 0.79 – 1074 – 263 – –
Zhang et al. 2024 – – – – -0.042* – – –
Hunt & Reffert 2024 – – – – – 463* – –
Cavallo et al. 2024 1.49 0.58 – 1096 0.290 – – –
Hunt & Reffert 2023 1.40 0.29 0.53 1222 – – – –
Almeida et al. 2023 1.40 0.81 – 1030 -0.103 420* 0.38 –
Tarricq et al. 2022 1.49 – – 1000 – – – –
Dias et al. 2021 1.36 0.79 – 1074 -0.119 – – –
Cantat-Gaudin et al. 2020 1.53 0.59 – 933 – – – –
Liu & Pang 2019 – – – 550 0.500 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 211 100.0 95.26 -3.46 0.67 -1.49 1.6 24.72 0.1
CWWDL 3289 51.1 95.27 -3.46 0.67 -1.5 1.6 24.15 0.0

💡 Note: The % column shows the percentage of members that FoF 658 shares with each listed object.

Visualization
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FoF 658 UCC
FoF 658 HUNT23
FoF 658 CANTAT20
Galactocentric position diagram