Galaxies
Milky way
Star systems
Star clusters
The scale of the universe
100
What are the three types of galaxies?
spiral galaxies, eliptical galaxies, and irregular galaxies
100
Does the milky way always look the same?
NOPE!! the shape varies from where your looking.
100
What are star systems??
Star Systems are groups of two or more stars!!
100
What are the two star clusters?
Open clusters and globular clusters.
100
How do astronomers describe sizes and distances in the universe?
Scientific notation
200
What is a galaxy?
A huge group of single stars, star systems, star clusters, gas and dusk bound by gravity.
200
Where is our solar system located?
Our solar system is inside the Milky Way galaxy in one of the spiral arms so we can’t see the shape.
200
What is a binary star?
A star system that has two stars.
200
What do open clusters contain?
Many bright super giants and a lot of gas and dust.
200
Does scientific notation use powers of ten to write very large or very small numbers in longer form or shorter form?
Shorter form
300
What is galaxy has a bulge in the middle and spiral arms?
A spiral galaxy.
300
How many light years away is the center of the milky way?
Center of galaxy is about 25,000 light-years away
300
How can astronomers tell that there is a dim star in a binary system?
By observing the effects of its gravity.
300
Bonus: What is a supercluster?
A connected group of clusters of galaxies that may extend for hundreds of millions of light-years.
300
What is the universe?
All of space and everything in it.
400
Which galaxies have stars that are no longer forming?
Eliptical galaxies
400
What kind of galaxy is the milky way?
Spiral galaxy
400
What is an Eclipsing Binary?
A system in which one star periodically blocks light from another
400
Do globular clusters have old or new stars?
Old stars
500
What is a Quasar?
Active young galaxies with giant black holes in their centers
500
What does new evidence sugest about the milky way??
Milky Way is thought of a standard spiral galaxy but evidence suggests it is a barred-spiral galaxy.
500
Which instrument is most useful when determining a visual binary?
Telescope
500
Which kind of clusters are more dense and have more stars?
Globular clusters
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