33
/it/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
5574641
525422
2

1 gen 1838 anni - Friedrich Wilhelm Bessel proof

Descrizione:

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

Aggiunto al nastro di tempo:

Data:

1 gen 1838 anni
Adesso
~ 187 years ago