Earth Science - Patterns in the Night Sky

This lecture explains constellation patterns, the apparent motions of stars and the Sun, the celestial sphere, Polaris, and angular measurements including the small-angle formula.

Syllabus

Intro
PATTERNS IN THE NIGHT SKY
CONSTELLATIONS
DIURNAL MOTION
THE NORTH STAR
MOTIONS OF THE CELESTIAL SPHERE
MEASUREMENTS USING THE CELESTIAL SPHERE
ANGULAR MEASUREMENTS
ANGULAR SIZES AND DISTANCES
THE SMALL ANGLE FORMULA
The angle that appears to separate two objects in the sky is known as the
Orion is visible on winter evenings but not summer evenings because of
How many arcseconds are in 1°?
The apparent path of the Sun against the backdrop of the celestial sphere is called the