One question, several references
Earth–Moon distance: 384,400 km and light travel time
Understand the mean Earth–Moon distance through Earth diameters, a scale model and light travel time.
Try it in the explorer →An average, not a fixed separation
The journey adopts a mean centre-to-centre distance of 384,400 km. The lunar orbit is not circular, so the real distance varies. This number does not represent a gap between the surfaces.
In Earth diameters
Using the Earth diameter adopted in this catalogue, this distance represents about 30.2 Earth diameters. The scene’s text expresses that separation as about 30 Earths lined up; it does not depict planets actually present between us and the Moon.
If Earth were a 22-centimetre ball
In this model, the centre-to-centre distance would be about 6.6 m and the Moon’s diameter about 6 cm. One common factor reduces both sizes and the distance.
Light travel time
Using 299,792,458 m/s and this mean distance, the light journey takes about 1.282 seconds. Accelerated playback is always identified.
This journey’s references
Sources and method
Dimensions and conventions are those of the fact sheets linked above. Illustrations remain interpretations. Providing a documentary source does not independently certify every catalogue value.