Which product development innovation by Celestron in the 1980s revolutionized the amateur astronomy market by making telescopes significantly more accessible to beginners?

The astronomy equipment market has seen dramatic shifts in product development strategies over the past decades. Major telescope manufacturers have had to adapt to changing consumer demands, technological advancements, and varying levels of public interest in space observation. This trivia question focuses on a pivotal moment in telescope product development that transformed the amateur astronomy market and changed how consumers interact with astronomical equipment.

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The introduction of the NexStar computerized mount system with GPS alignment
The development of the Schmidt-Cassegrain compact telescope design
The launch of the first GoTo computerized telescope with automated object finding
The creation of the first smartphone-compatible telescope control system