Fig. 8
From: Heliocentric distance dependence of zodiacal light observed by Hayabusa2#
Aperture photometry of a star, as used for sensitivity calibration. A boxed region of \(41\times 41\) pixels centered on the selected star from the catalog is cut out from the W(x, y)/FLAT(x, y) image (left), and it is then divided into a region containing the central star (center), which is used for the aperture photometry of the star, and the surrounding background region (right), which is used to estimate the background brightness and its noise