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Why Sextant Readings Need Refraction Corrections

Bob the Science Guy Guide 10 days ago

Description

Atmospheric refraction changes the apparent altitude of a celestial object. Bob explains why low-altitude observations need particular care and how corrections improve a sextant result.

Want to learn more? Watch this related public BtSG video:
Sextant Corrections Explained: From Raw Measurement to True Altitude
https://www.youtube.com/watch?v=wm0T3xwIev0

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