Plug in x into the bar below. This program defines object size for your mouse to move it in front of the disk, Eclipsing it in many ways. Press space to plug in x again. You can also plug in total magnitude to equal x/200. This project works accurately on this website: https://forkphorus.github.io/#360837833
Size of Venus during a transit is about 6.075 Size of Mercury during a transit is about 0.621 0.9 magnitude annular solar eclipse is 180 1.025 magnitude total solar eclipse is 205 The approximate factor of the 8/21/2017 eclipse is 205.9025