Galaxies
A galaxy is a system of what
Billions of stars made of gas, dust, held together by gravitational attraction
What type of Galaxy is the Milky Way in
Spiral Galaxy
What is a Light Year
The distance light travels in one year
The Center of Some planets
Rocky Core
What does terrestrial mean
Like Earth in some way
The Milky Way has Spiral Arms including the
Orion Arm (Where our solar system is)
How many Galaxies are there
Billions of Spiral,Elliptical,Irregular
Light Travels at about
186,00 miles a second or 671 million miles a hour
What separates the inner and outer planets
Asteroid Belt
Outer planets are also called what
Jovian planets
The Three main types of Galaxys
Irregular, Spiral, and Elliptical
This Galaxy has distinctive Spiral Arms, a central bulge
Spiral Galaxy
Its takes how long for light from the Sun to travel to Earth
8.4 minutes
The gases surrounding our planet
Atmosphere
The Suns gravity keeps the planets in orbit in our solar system. How does the distance between two objects effect the force of gravity
The closer two objects are the less gravitational force they have.
We classify Galaxies by their
Structure, shape, and Characteristics
This galaxy doesn't have a specific from/structure, where many stars or created, and result from gravitational interactions with other galaxies
Irregular Galaxy
Its takes how long for the Suns light to reach Neptune
4.17 hours
A celestial Object that orbits a planet
The Moon
What is a light year used to measure in astronomy
The distance between celestial objects
What supercluster is the Milky Ways Located
The Supercluster Laniakea
Shaped like a Oval, lacks spiral arms, often contain low mass stars, less ongoing star formations, and are the most abundant galaxies
Elliptical Galaxy
The Closest galaxy to our Sun is how mnay light years away
70,000 light years
Describe inner planets
The four closet plannets to the sun, made primarily of rock, are the four smallest planets
What happens to air pressure in the eye of a tropical cyclone
It decreases significantly