7 day old,First Quarter Moon. Image 7 of 27. Waxing (increasing in apparent size) half Moon 7 days into its 28-day cycle (first quarter). The lunar phases arise as the Moons orbit of the Earth shows the Earth-facing side moving into and out of the light of the Sun. This Earth-facing side of the Moon is locked in place by the gravitational influence of the Earth. This results in a lunar day that equals the length of the lunar Earth orbit. On a waxing Moon the day-night line (terminator) marks the lunar dawn | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Landolfi, Larry |
Taille de l’image : | 3631 px × 2478 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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