Heliometer Observations for Determination of Stellar Parallax Made at the Royal Observatory, Cape of Good Hope - David Gill - Bog

This book details the groundbreaking work of David Gill and his team at the Royal Observatory Cape of Good Hope in determining the parallax of numerous stars using the advanced technology of the heliometer. The observations made here were instrumental in advancing our understanding of the scale of the universe. A must-read for any astronomy enthusiast or historian.
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