Editing Flat Earth (section)

===Star trail photography proves that the Earth doesn't move!===
Although not strictly a geocentric argument (as one can technically still adopt a [[heliocentric]] [[worldview]] while holding to a belief in a flat Earth), flat earthers almost always fall into that camp.

One particular claim is that long-duration star trail photographs do not show any movement of the stars other than that caused by the [[Earth's rotation]], the flat earther's reasoning being that, if the Earth is moving so fast around the [[Sun]], the stars should appear smudged. This claim is symptomatic of all flat earthers' false assumptions about the distance between us and celestial objects, or their inability or lack of willingness to perform basic math.

*Assume a star trail photograph of the nearest star is taken for 12 hours on a 10,000 wide pixel camera. The Earth would travel about 1,287,000 km during that time. The nearest naked-eye visible star is Alpha Centauri, which is 4.34 light-years (41 trillion kilometers) away. The star would appear to move 0.018 pixels.