权威例句
CZJ O16 versus TV Plossl 15 on faint galaxiesRADCAT, old spin-stabilized spacecraftOh that was easy! My corrector is clean again.IRIDIUM FLARES103P Hartley 2 ephemeris ???CPC800, C8-SGT and Nexstar 8SESeeing the Galillean satallites naked eyeBaader solar film (photographic vs. visual)3.7mm Ethos SX / Tak Sky 90 IIGOOD EYEPIECE FOR LOOKING AT SATURN AND JUPITER ?