FoF 2220

(LP 2220)

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0.75 UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.62
Clit
1.0
Cdup
N50 (P>50% members) 102
Stellar density (N50/rad) 7.9 [N/pc2]
C3 classification AB
  • CN 0.75 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.62 Moderately studied
  • Cdup 1.0 Unique
đŸ“Ĩ Members 📊 Colab đŸ”Ŧ Bayestar19 MOCAMOCA 🔍 CDS 🔍 Simbad 🔍 CDS (Îą, δ) 🔍 Simbad (Îą, δ)

Overview
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FoF 2220 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

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 2220 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– 127.442 -41.334 0.735 -1.77 1.108 -6.236
Li et al. 2025 127.45 -41.343 0.716 -1.762 1.07 –
Hu & Soubiran 2025 127.442 -41.294 – – – –
Almeida et al. 2025 127.458 -41.343 – – – –
Hunt & Reffert 2024 127.411 -41.272 0.732 -1.774 1.126 0.882
Cavallo et al. 2024 127.442 -41.294 0.736 – – –
Hunt & Reffert 2023 127.411 -41.272 0.732 -1.774 1.126 0.882
Almeida et al. 2023 127.447 -41.365 – – – –
Tarricq et al. 2022 127.437 -41.331 0.732 -1.776 1.111 –
Dias et al. 2021 127.458 -41.343 0.718 -1.768 1.093 2.699
Cantat-Gaudin et al. 2020 127.45 -41.343 0.716 -1.762 1.07 –
Liu & Pang 2019 127.472 -41.33 0.719 -1.759 1.134 –

💡 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] Bfrac BSS
UCC 99999– 1.29 0.89 1.17 597 -0.175 351 0.42 –
Li et al. 2025 1.19 0.89 – 716 -0.250 – – –
Hu & Soubiran 2025 – – – – -0.250(5) – – –
Almeida et al. 2025 1.29 1.00 – 597 – 243 – –
Hunt & Reffert 2024 – – – – – 351(1) – –
Cavallo et al. 2024 1.30 0.50 – 1349 0.280 – – –
Hunt & Reffert 2023 1.28 0.66 1.17 540 – – – –
Almeida et al. 2023 1.29 1.06 – 507 -0.100 365(1) 0.42 –
Tarricq et al. 2022 1.31 – – 490 – – – –
Dias et al. 2021 1.29 1.00 – 597 -0.075 – – –
Cantat-Gaudin et al. 2020 1.35 0.68 – 457 – – – –
Liu & Pang 2019 – – – 1150 -0.500 – – –

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 242 100.0 127.44 -41.32 0.73 -1.78 1.11 -1.42 0.28
CWWDL 14141 30.4 127.61 -41.38 0.73 -1.76 1.12 -1.55 0.0

💡 Note: The % column shows the percentage of members that FoF 2220 shares with each listed object.

Visualization
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FoF 2220 UCC
FoF 2220 HUNT23
FoF 2220 CANTAT20
Galactocentric position diagram