Advertisers in This Issue Astronomy equipment manufacturers and dealers are a valuable resource for amateur and professional astronomers alike. Patronize our advertisers in this issue and enjoy all the benefits of their expertise. Product Locator Astro-Physics »page 81 mounts / telescopes astro-physics.com Celestron »back cover accessories / binoculars / mounts / telescopes celestron.com iOptron »page 5 mounts / telescopes ioptron.com QHYCCD Light Speed Vision »page 1 cameras qhyccd.com Sky-Watcher »inside front cover binoculars / mounts / telescopes skywatcherusa.com Stellarvue »inside back cover eyepieces / telescopes stellarvue.com Ad Index Arizona Sky Village Portal ......................... 80 Astro-Physics .......................................... 81 Bob's Knobs ............................................. 80 Casitas de Gila Guesthouses .................... 80 Celestron ................................................. C4 Insight Cruises ..................................... 3, 81 iOptron ...................................................... 5 Knightware .............................................. 81 Lunatico Astronomia ................................ 80 NexDome ................................................. 81 Nine Planets Ring .................................... 81 Precise Parts ........................................... 80 QHYCCD Light Speed Vision ....................... 1 Revolution Imager .................................... 80 Sky & Telescope .......................5, 71, 73, 83 Sky-Watcher ............................................ C2 Stellarvue ................................................ C3 Technical Innovations ............................... 81 Willmann-Bell .......................................... 80 To advertise in our Product Locator, please email Kelly Clark at: ads@skyandtelescope.org 82 APRIL 2023 * SKY & TELESCOPEhttp://www.astro-physics.com http://www.qhyccd.com http://www.celestron.com http://www.skywatcherusa.com http://www.ioptron.com http://www.stellarvue.com