violetchaos364: neornithes: spacetimecontinumm: Lunation Our Moon’s appearance changes nightly. This time-lapse sequence shows what our Moon looks like during a lunation, a complete lunar cycle. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The Moon always keeps the same face toward the Earth. The Moon’s apparent size changes slightly, though, and a slight wobble called a libration is discernible as it progresses along its elliptical orbit. During the cycle, sunlight reflects from the Moon at different angles, and so illuminates different features differently. A full lunation takes about 29.5 days, just under a month Image Credit & Copyright: Myself Is it just me, or does it look like it’s breathing? NEW DOCTOR WHO EPISODE That’s no moon. It’s a spac… no, wait… nevermind, it is a moon.

violetchaos364:

neornithes:

spacetimecontinumm:

Lunation

Our Moon’s appearance changes nightly. This time-lapse sequence shows what our Moon looks like during a lunation, a complete lunar cycle. As the Moon orbits the Earth, the half illuminated by the Sun first becomes increasingly visible, then decreasingly visible. The Moon always keeps the same face toward the Earth.

The Moon’s apparent size changes slightly, though, and a slight wobble called a libration is discernible as it progresses along its elliptical orbit. During the cycle, sunlight reflects from the Moon at different angles, and so illuminates different features differently. A full lunation takes about 29.5 days, just under a month

Image Credit & Copyright: Myself

Is it just me, or does it look like it’s breathing?

NEW DOCTOR WHO EPISODE

That’s no moon. It’s a spac… no, wait… nevermind, it is a moon.

(via totalgeek42)