Day/Night Seasons
What causes day & night?
Rotation of the Earth
What are the four inner planets?
Mercury, Venus, Earth, Mars
How many phases of the moon are there?
8
How many stars are in our solar system?
1 (the Sun)
What are the three types of galaxies?
Spiral, Elliptical, Irregular
What is the tilt of the Earth's axis?
23.5 Degrees
What is the only planet to have rings?
Saturn
How long is the lunar cycle?
29.5 days
What are the labels (x & y axis) on an H-R Diagram?
Temperature & Luminosity
What galaxies is the Solar System located?
Milkyway
What causes the seasons?
The revolution of the Earth around the Sun
List the planets in order
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
How long does each phase take to transition to the next?
3.5 days
An H-R diagram's temperature is measured in ____
Kelvin (K)
What are the three types of space rocks?
Asteroids, Meteors, and Comets
What is the longest day of the year?
Summer Solstice
What is gravity?
A natural force of attraction exerted by a celestial body on the mass of objects that are on or near its surface.
What gives the moon its light?
The Sun
What tells us how bright an object appears from Earth?
Apparent Magnitude
When a meteor crosses the sky, the light given off is caused by ________.
Friction
How many days does it take the Earth to revolve around the sun?
365 1/4
Outer planets are made up of mostly what?
gas
What is the different between waning & waxing?
waxing - the moon's light is growing bigger (Moving from a New Moon to a Full Moon)
wanning - the moon's light is going away (moving from a Full Moon to a New Moon)
About 90% of the stars in the universe, including the Sun, are located in this spectral class.
Which space rocks orbit the sun?
Asteroids, comets, and meteors