FoF 947

(LP 947)

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0.72 UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.55
Clit
1.0
Cdup
C3 classification AB
Number of members (P>50%) 108
Radius (P>50% members) 3.4 [arcmin]
  • CN 0.75 Rich
  • Cdens 1.0 Very dense
  • CC3 0.75 High quality
  • Clit 0.55 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 947 is a rich, very dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate 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 a later reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Old

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Cavallo et al. (2024)
Gold sample.

Data
🔍 Search references for FoF 947 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 – 118.609 -27.516 0.331 -4.249 3.716 52.768
Li et al. 2025 118.61 -27.518 0.333 -4.264 3.683 –
Hu & Soubiran 2025 118.62 -27.518 – – – –
Almeida et al. 2025 118.618 -27.529 – – – –
Hunt & Reffert 2024 118.61 -27.512 0.33 -4.25 3.697 55.145
Cavallo et al. 2024 118.62 -27.518 0.329 – – –
Hunt & Reffert 2023 118.61 -27.512 0.33 -4.25 3.697 55.145
Dias et al. 2021 118.618 -27.529 0.333 -4.27 3.693 52.771
Cantat-Gaudin et al. 2020 118.61 -27.518 0.333 -4.264 3.683 –
Liu & Pang 2019 118.604 -27.529 0.34 -4.259 3.725 –

💡 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 2.79 1.44 – 1503 -0.146 – – –
Hu & Soubiran 2025 – – – – -0.090* – – –
Almeida et al. 2025 2.62 1.50 – 1455 – 396 – –
Hunt & Reffert 2024 – – – – – 712* – –
Cavallo et al. 2024 2.70 1.15 – 1585 0.290 – – –
Hunt & Reffert 2023 2.70 1.30 1.18 1197 – – – –
Dias et al. 2021 2.62 1.50 – 1455 -0.056 – – –
Cantat-Gaudin et al. 2020 2.88 1.22 – 1349 – – – –
Liu & Pang 2019 – – – 2510 -0.750 – – –

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

Cluster % RA DEC Plx pmRA pmDE Rv UTI
UBC 234 100.0 118.61 -27.52 0.33 -4.23 3.71 53.03 0.2

💡 Note: The % column shows the percentage of members that FoF 947 shares with each listed object.

Visualization
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FoF 947 UCC
FoF 947 HUNT23
FoF 947 CANTAT20
Galactocentric position diagram