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Tools of Astronomy
Star Characteristics
Life Cycle of Stars
Star Systems and Galaxies
Miscellaneous
100
This telescope uses mirrors to gather and focus light.
What is a reflecting telescope?
100
The amount of time it takes for light to travel in one year.
What is a light year?
100
The beginning, it makes up a stellar nursery and is the place where all stars begin their "lives."
What is a nebula?
100
This term describes a black hole in the middle of a galaxy.
What is a quasar?
100
It's when you see a star moving against a starry background.
What is a parallax shift?
200
These are large building which contain one or more fixed telescopes.
What is an observatory?
200
Hundreds of billions of stars make up this.
What is a galaxy?
200
The contracting gas and dust becomes so hot that nuclear fusion occurs and this forms.
What is a protostar?
200
It's a star system with two stars.
What is a double star/binary star?
200
A giant or supergiant star will do this before the end of its life.
What is a supernova?
300
The lense used by refracting telescopes is curved so that the middle is thicker than the edges and is called this.
What is a convex lens?
300
The main characteristics of stars.
What is size, brightness and temperature?
300
Giant and supergiant stars live only this long because of its larger mass and its more rapid consumption of fuel.
What is 10,000,000 years?
300
This is when one star revolves another one, occasionally blocking it from an astronomer's view.
What is an eclipsing binary?
300
This is the result of all the leftover energy of a star being used.
What is a black dwarf?
400
Radio wave infrared radiation, visible light, UV light, X-rays and gamma rays make up this.
What is the electromagnetic spectrum?
400
This diagram tells you the size of stars, theor temperatures, their colors and their brightness.
What is the Hertzsprung-Russell diagram?
400
When a star of this size dies, it becomes a white dwarf first, then a black dwarf when all the leftover energy is used up.
What is a small or sun-sized (main sequence) star?
400
Galaxies come in these three shapes.
What is spiral, elliptical and irregular?
400
The Large Magellanic Cloud is an example of this.
What is an irregular galaxy?
500
The Very Large Array and Arecibo are examples of this type of telescope.
What is a radio telescope?
500
This magnitude tells the brightness of a star if it were at a standard distance from Earth.
What is absolute magnitude?
500
This is formed after a giant or supergiant star explodes
What is a black hole?
500
Milky Way, our galaxy, looks like this.
What is a spiral galaxy?
500
This star is 4.2 light years away, or, 40 million million kilometers (40,000,000,000,000 km).
What is Proxima Centauri?