Sunday Feb 18th 2018 â Joe McElderry Appearance â Sunday for Sammy, Metro Radio Arena, 2.00pm & 7.30pm Tickets: 0844 4936666 January 18, 2018 Joe will be guesting on Kerry Ellisâs Show Joe will be guesting on Kerry Ellisâs show on Feb 16th 2018 at Union Chapel, Compton Terrace, London N1 2UN Phone: 020 7226 1686 For tickets please click here
Because he knew the value which Hipparchus eventually gave for the distance to the moon (71 earth radii) and the rough region of the eclipse, Toomer was able to determine that Hipparchus used the eclipse of March 14, 190 BC. This eclipse fits all the mathematical parameters very well, and also makes sense from a historical point of view.
In the same century, Aristarchus computed the size and distance of the Moon from Earth, obtaining a value of about twenty times the radius of Earth for the distance. These figures were greatly improved by Ptolemy (90â168 AD): his values of a mean distance of 59 times Earth's radius and a diameter of 0.292 Earth diameters were close to the correct values of about 60 and 0.273 respectively.