RT @RonBaalke: 180 years ago today (1836), Francis Baily observed what is now called Baily’s Beads during a solar annular eclipse https://t.co/AL0rYARdDV
RT @RonBaalke: 180 years ago today (1836), Francis Baily observed what is now called Baily’s Beads during a solar annular eclipse https://t.co/AL0rYARdDV