Which innovative marketing approach by Celestron in 2018 dramatically increased telescope sales among first-time astronomy enthusiasts?

The astronomy consumer market has evolved dramatically in recent years, with major manufacturers competing for amateur stargazers and professional astronomers alike. One product launch in particular revolutionized how astronomy equipment is marketed to hobbyists. Test your knowledge about this significant marketing shift that changed consumer expectations in the astronomy equipment industry.

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The 'StarSense Explorer' app integration that automatically identifies celestial objects without prior knowledge
A subscription-based model offering different telescopes delivered quarterly based on seasonal viewing opportunities
The 'Galaxy Guarantee' program promising refunds if customers couldn't view at least 50 deep sky objects within a year
Their 'Astronomer For A Day' experience that included professional observatory visits with each premium telescope purchase