☄️ Apophis 2029 Flyby: How Close, How Bright and How Earth's Gravity Changes Its Orbit

Interactive 3D Earth-Moon-Apophis scene for the 13 April 2029 flyby (about 38,000 km from Earth's centre, inside the geostationary ring): numerically integrated hyperbolic path, closest-approach distance and speed, a sky and brightness map showing where it is visible, and how Earth's gravity bends the path and changes the Sun orbit from Aten to Apollo. Scrub time, change the approach and check the numbers against vis-viva and analytic hyperbola results; approximate public figures, no impact in 2029.