🌙 Stonehenge Moon and Stones: Lunar Standstills and Raising a Trilithon — 2D Horizon Wheel, Standstill Cycle and Hauling a Stone

2D companion of the Stonehenge Moon and Stones lab: a horizon wheel of Sun and Moon rise azimuths for any year, the Moon's declination, the 18.6-year standstill cycle, moonrise azimuth through a month and the statics of hauling and tilting a stone, using the same astronomy and statics modules as the 3D scene.