jan 1, 1838 - Friedrich Wilhelm Bessel proof

Description:

proved the apparent shift in position of a star was more than 0 by measuring the shift of 61 Cygni to be 0.314 arcseconds - Struve & Henderson observed similar for Vega & Alpha Centauri in the same year

Added to timeline:

Heliocentric Ideas

ByKayte Kelly

8 Sep 2021

208

Date:

jan 1, 1838

Now

~ 187 years ago

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