ASTR 1010 Lecture Notes - Lecture 3: Equinox, Ecliptic, Northern Hemisphere
12 Aug 2016
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Chapter 2 problem set posted on lon capa due next wednesday before class. Earth lit up by sun in shadow; night time here. Rays less dispersed, whereas rays are more dispersed below. Winter in southern hemisphere (-12 hrs. of sun) Spring and fall same concentration and hours of light in both hemispheres. Winter solstice december 21st, least amount of sun in northern hemisphere and most. Summer solstice june 21st (hottest days of the year are later due to stored head in land, and it takes time for things to heat up ) Southern hemisphere has hotter summers due to location and less land (stored head in land) Moon rotates at the same rate it orbits; we see the same side of the moon; we never see the dark side of the moon lit up (occurs during a new moon) In 2 days, moon will arrive back in the same phase. Synoptic month (29. 5 days) moon comes back to same phase.
