Which astronomy brand pioneered the 'Star Test Bar' in retail stores, allowing customers to test telescope optics on artificial stars before purchase?

The astronomy industry has seen remarkable innovations in product marketing and customer experience over the decades. From telescopes to planetarium experiences, companies have revolutionized how we engage with the cosmos. This trivia question focuses on a pivotal moment in astronomy retail history that changed how amateur astronomers interact with products before purchase.

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Celestron
Meade Instruments
Orion Telescopes & Binoculars
Sky-Watcher