Image Details
Caption: Figure 2.
Photometric relation between the cataloged magnitudes of detected stars (N. Cardiel et al. 2021) and their instrumental signals in data number (DN) units in the red (left), green (center), and blue (right) channels. Each solid line represents the result of the best linear approximation in regions darker than 4 mag.
© 2026. The Author(s). Published by the American Astronomical Society.