Sentences with phrase «average lunar day»

(The average lunar day is about 51 minutes longer than the solar day because of the moons rotation around Earth and this allows scientists to reliably separate the two tides in long observational records.)

Not exact matches

This 30 - slide presentation revises the following learning objectives: 1) To explain how the Earth spinning explains day and night 2) To know what a leap year is and explain why we need them 3) To explain why the average temperature changes as we go through the year 4) To explain why the length of the day changes as we go through the year 5) To describe difference between stars and planets 6) To describe the phases of the Moon 7) To explain that the apparent movement of the stars is caused by the rotation of the Earth 8) To explain total and partial solar and lunar eclipses 9) To explain the effect the sun and the moon have on tides on earth 10) To describe spring tides and neap tides

Those numbers are meaningless as the average temperature of the surface of the Moon is between 80 °C on the lit face and -200 °C on the dark face and averaged over a lunar day it's 98 K at the poles and 206 K at the equator.