Im using C++, and I decided to code an organization of the planets of the solar system. I need help starting this code because I am very confused where to start.

UML I created:

Color Mass AU Moons Rings Diameter Distance from (1024kg ) (km) sun Mercury Dark grey 0.330 0.4 AU 0 0 4879 58 million km Venus White 4.87 0.7 AU 0 0 12104 108 million km Earth Blue 5.97 1 AU 0 12756 150 million km(1AU) Mars Red 0.642 1.5 AU N 6792 228 million km Jupiter Yellow 1898 5.2 AU 79 4 142984 778 million km Saturn Yellow 568 9.5 AU 82 8 120536 1.427 billion km Uranus Blue - green 86.8 19 AU 27 13 51118 2.871 billion km Neptune Blue 102 30 AU 14 6 49528 4.498 billion km Sun White 0 0 1,391,900 Planet Volume = ( t/ 6) * (planet diameter) 3 Area = 4 * It * radius 2 (radius = diameter / 2) DistanceFromSun in AU = planets distance from the sun 150,000,000 (150,000,000 is equal to 1AU)\f