Kepler and his Laws
Plants don’t just spin in circles, they dance around the sun in this shape
What are ovals or ellipses !
Parithelion !
What is closest to the sun (hot and fast) !
Ellipse
A stretched out circle. A circle that got pulled.
ALMOST A CIRCLE/VERY stretched out
What is Low Eccentricity vs High Eccentricity
1. We have seasons because the Earth does this
2. Tilt + Daylight +Sun Angle =
What is LEANS! It does not move closer or farther from the sun
2. What are Seasons
Planets Move in Ovals and the sun sits off to the side (NOT IN THE MIDDLE)
Keplers 1st RULE OF SHAPE (Law of Elipses) !
Aphelion !
What is farthest from the Sun (COOL AND SLOW) !
Revolution
One trip around the sun=one year
Sun near the center/Sun off to one siide
Low Eccentricity/High Eccentricirty
The earth tilts this type of degrees
23.5
Keplers 2nd Law !
what is the Law of Equal Areas (or SPEED RULE). The closer to sun faster, Farther=slower.
Planets race near the Sun and STROLL/walk slowly when far away !
Eccentricity !
What is how stretched out the orbit is (circular low number more oval higher number) !
Comet
What is Icy rock with a tail that GLOWS. TAIL ALWAYS POINTS AWAY
Smooth Orbit/Wild Orbit
Low Eccentricity/High Eccentricity
What is is TOWARD the sun
Keplers 3rd Law the Law of Periods (ie the Time Rule) !
What is the father you are from the sun the longer your trip.
OUTER PLANETS take longer !
Focus/Foci !
What is the “SPOT” the planet orbits around. ONE FOCUS: THE SUN !!
Exoplanet
What is a planet around another star. Think of it like a planet in another neighborhood
Earth/Comet
Low Eccentricity/High Eccentricity
Winter is when the earth tilts
What is AWAY from the sun
Seasons-Sunlight intensity !
1. Sun is higher in the sky equals this type of intensity !
2. Sun is lower in the Sky !
1. What is STRONG. High=Strong
2. What is Weaker sunlight. Weaker =lower
Major Axis !
The longest line across the oval !
1. Heliocentric
2. Newton’s Gravity Law
Sun is in the Center. Helio=Sun center
2. Bigger + Closwer= Stronger Pull
What is Winter
Daylight hours are longer and the nights are shorter during this season
What is Summer