A degree is 1/360th of a whole…
1/60th of a degree, you get an arcminute….
divide by 60 again and you arrive at an arcsecond..
it takes the Sun 1.73 years to travel one one hundredth of an arcsecond…
1/100th of an arcsecond is called a centi-arcsecond, and that’s what this website is setup to track!
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