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Moon Cycles

QuestionAnswer
Earth's axis? An imaginary straight line joining the North and South pole
The North Star? Polaris (right above North Pole)
North Celestial Pole Place in space where Earth's North Pole points to
South Celestial Pole Place in space where Earth's South Pole points to
Why does Polaris appear not to move? Bc it is so close to the pole
Rotation Spinning of an object around its axis
Does Earth rotate clockwise or counterclockwise? Counterclockwise
Celestial objects appear to rise in the ____ East
Celestial objects appear to set in the ____ West
Earth's tilt 23.5 degrees from the vertical, relative to the plane of Earth's orbit
Revolution Movement of one object around another
How fast does Earth revolve around the sun? 29.8 km/s
What path does Earth revolve on? Elliptical
Is the Northern Hemisphere closer or farther from the Sun in the winter? Closer
Does the Northern Hemisphere tilt towards or away from the Sun in the winter? Away from
Is the Northern Hemisphere closer or farther from the Sun in the summer? Farther
Does the Northern Hemisphere tilt towards or away from the Sun in the summer? Towards
Why does the temperature and amount of daylight hours change throughout the year? Bc the Sun's rays spread over smaller and larger areas
What is solstice? The shortest and longest periods of daylight which occur when Earth is most inclined into or away from the Sun
What is equinox? The time of year when the hours of daylight and darkness are equal
Eccentricity? Following 100 000 yr cycle, shape of Earth's orbit varies from being circular to more elliptical owing to influence of gravities of other planets
Precession? Earth is slowly wobbling and axis is slowly moving
Tilt? Can range from 22.1 degrees to 24.5 degrees
What is the lunar cycle? The eight phases of the moon
How long does a lunar cycle last? 4 weeks
List every phase of the moon, in order New moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent
New moon degrees? 0
Crescent degrees? 45
Quarter degrees? 90
Gibbous degrees? 135
Full moon degrees? 180
Created by: lovinglifexoxo