Mooe Flashcards
Orbit definition is
The curve path of a celestial object or space craft around a star, planet, or moon, especially a periodic elliptical revolution
What is rotation of earth? What does it cause and how long does it take
The rotation of earth is its rotation around its axis , the moons gravity and friction 24 hours to rotate
What is revolution.
Travel around a central point. It takes 24 hours. The season occur also
Why do northern and Southern Hemisphere have opposite seasons?
This is because during summer or winter one part of the planets more directly exposed to the rays of the sun
Why do we see different phases of the moon for earth
We see different phases because of its position in relation to the sun and earth and different angles
How do the planets and moons get their light
From the sun
Which planets are considered inner planets what do they have in common
Mercury Venus earth Mars what they have in common is density is similar few moons
Outer planets nickname
Gas giant
Outer planets are. What do they have in common
Neptune Uranus Saturn Jupiter , Jupiter and Saturn with atmosphere made up of hydrogen and helium
What separates the inner planets to the outer planets. Where is it
Asteroid Belt in space
Astronomical unit definition
Measurement of center of earth to center of sun
Light year definition
A unit of astronomical distance equivalent to the distance that light travels in a year
Which stage of life do stars spend most of their life
Main Sequence
What are the 4 levels of universe
Solar system, Galaxy, Milky Way,
Explain how temperature and color of a star are related
The hotter stars are bluer stars … The colder the redder
What diagram do we use to classify stars .
Hertzsprung Russell x luminosity temperature
Galaxy is
A system of millions or billions stars
What holds galaxies and solar systems together
The suns gravitational force
How are galaxies classified
Spiral, barred spiral , elliptical, irregular
3 types of galaxies
Elliptical , spiral, irregular
We live in M
Milky Way
An asteroid is a
Small rocky body orbiting the sun
Comets
Made of ice and dust orbit sun
Difference between meteor and meteorite
Meteor shooting star meteorite- a meteoroid that lands in earth
People mistake a meteor for a shooting star because
It burns up in earths atmosphere like shooting stars
Blue is ___ Red is___
Hot, Cold
