Which innovative marketing strategy did Celestron use when launching their EdgeHD telescope line that helped it become a market leader?

The astronomy product market has seen remarkable innovations in telescope design and marketing over the decades. One particularly successful product launch revolutionized how amateur astronomers view deep-sky objects. This poll tests your knowledge of product marketing in the astronomy industry, specifically about a game-changing telescope design that transformed the market through innovative product development and clever marketing strategies.

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They created a unique "aplanatic edge-to-edge" visual storytelling campaign showing the difference between standard SCTs and their new flat-field design
They partnered with NASA to create co-branded telescopes featuring special access to the Hubble image database
They introduced the industry's first AI-powered star alignment system and marketed it as "astronomy for everyone"
They created a subscription model where buyers received quarterly packages of additional eyepieces and accessories