I”m surprised they don’t say what telescope photographer Eric Holland used. The APOD site has a link on “Palo Alto, CA” and (of all things) it takes you to a really nice drone flight by Eric over the Palo Alto Baylands and Duckpond where I’ve hiked many times.
The Foothill College Observatory in next-door Los Altos Hills has an observatory with a 16-inch computer-controlled Schmidt-Cassegrain reflector, but I doubt Eric had access to that for a photo.
I was looking for that info, too. His Instagram page doesn’t have it, either. Anyone who can get a shot like that has certainly done their homework.