'In 1838 Friedrich Bessel first measured a star's distance by using parallax--using observations this many months apart'
6
LET'S LOOK TO THE STARS: In 1838 Friedrich Bessel first measured a stars distance by using parallax--using observations this many months apart
In 1838 Friedrich Bessel first measured a star's distance by using parallax--using observations this many months apart
In 1838 Friedrich Bessel first measured a star's distance by using parallax--using observations this many months apart
LET'S LOOK TO THE STARS
6
LET'S LOOK TO THE STARS