优惠套装 Celestron C90 Mak Spotting Scope x Sky-Watcher Star Adventurer Mini discount package
2022-04-01
Celestron C90 Mak Spotting Scope连SA Mini赤道仪套装限时优惠
http://www.astro.hk/catalog...
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Post-pandemic astronomy programs 后疫情天文活动
2022-03-25
Our post-pandemic work focus will be organizing programs for enthusiasts, families and stu...
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