GALLERY u DIAMOND DOWN UNDER Tunç Tezel The diamond-ring effect is seen seconds before totality during the April 20th solar eclipse. Several pinkish prominences and many bright coronal streamers, both typically seen during solar maximum, jut out along the lunar limb in every direction. DETAILS: Canon 6D camera with 100-to-400-mm lens. Total exposure: less than a second at f/8, ISO 400. q STELLAR LAGOON Pavel Vorobiev A bright blue bolide is reflected in Hanson Lagoon in Baja, California, as it streaked through Aries on July 23rd. A thunderstorm flashes along the horizon at right. DETAILS: Nikon D750 camera and Irix 15-mm lens. Stack of two 20-second exposures at f/2.4, ISO 800. 76 NOVEMBER 2023 * SKY & TELESCOPE