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Three independent sets of data: i). series of filtergrams obtained in lineCaII K (393.416 nm) with the ground-based telescope Precision Solar PhotometricTelescope (PSPT) of Mauna Loa Solar Observatory; ii). series of filtergrams ofAtmospheric Imaging Assembly (AIA) of the Solar Dynamics Observatory (SDO) in{\lambda}160 nm and iii). series of magnetograms of Helioseismic and MagneticImager (HMI) of SDO have been processed to reveal reliably the existence ofspatial cellular structures on the solar photosphere at scale about of 300arcsec. This scale is intermediate between supergranules and giant cells(~30,000 and ~300,000 kilometers across, respectively). To identify thedifferent spatial structures the tens of two-dimensional power spectra (2DFFT)have been averaged. For one-dimensional photometric cross sections of frames,the Fourier power spectra (FFT) and wavelet transforms (Morlet 5-th order) havebeen calculated.

Identification of large-scale cellular structures on the Sun based on the SDO and PSPT data