บท 543: Chapter 532: Delay of Ten Minutes_1

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Mars, distant from Earth.

The Martian system is composed of Mars itself and two moons that orbit it, though compared to the Earth-Moon system, its two companions are quite modest.

The diameter of Phobos, the first moon, is just over 20 kilometers, and Deimos, the second moon, is even smaller, with a diameter of only 15 kilometers, orbiting at altitudes of 1,300 kilometers and 8,300 kilometers, respectively.

The Moon's diameter is nearly 3,500 kilometers, so in comparison, these two small bodies are at best large asteroids, and scientific research has also proven them to be asteroids captured by Martian gravity.

Their surfaces are not only pockmarked but also lack a regular and approximate circular shape, hence their low reflectivity. Viewed from the surface of Mars, they appear just as two dim stars, only 1/12 as visible as the Moon from Earth, roughly equivalent to seeing Venus from Earth.