Which e-commerce feature revolutionized online astronomy equipment shopping by allowing customers to virtually test telescopes before purchase?

The astronomy industry has embraced e-commerce in unique ways to serve both professional astronomers and amateur stargazers. From specialized telescopes to observation equipment, astronomy retailers have developed distinct online platforms to meet the needs of this niche market. This trivia question tests your knowledge about how astronomy product retailers have innovated in the digital marketplace.

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Night Sky Simulator - allowing customers to see exactly what celestial objects would look like through specific telescope models at their location
Constellation Comparison Tool - letting customers compare how many stars they could see in each constellation with different telescope magnifications
Astronomer's Social Network - connecting buyers with professional astronomers who previously purchased the same equipment
Universal Equipment Translator - automatically converting telescope specifications between different measurement systems used around the world