Phroon@beehaw.orgtoSpace@beehaw.org•Want to get into stargazing? A professional astronomer explains where to startEnglish
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9 months agoGetting out to the dark and just looking up is a really good suggestion of a place to start. Turn Left at Orion is a really good absolute beginner book too, so I second that recommendation as well. One resource I’d recommend that was missing from the article is the Cloudy Nights Forums. It’s one of the niche old-style forums that a lot of amateur astronomers frequent.
Ah, they are talking about an inertial measuring unit. Basically, by measuring all acceleration you’ve experienced you can calculate your change in position. They can’t determine absolute position though, only relative, so this doesn’t so much replace GPS as assist it.