NOT A GAME Made this for astronomy One tracker counts the number of Solar Days (the number of times the planet rotates compared to the sun) and the other counts the number of Sidereal Days (the number of times the planet rotates compared to the distant stars). Note that a Solar Day is longer than a Sidereal Day. On Earth, one Solar Day is 24 hours, and on Sidereal Day is 23 hours and 56 minutes.
