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History & Extra
WHO'S WHO
MAPPING STARS
TELESCOPES
VOCABULARY
100
The study of the objects within the universe is
What is astronomy
100
The earth is the center of the universe
Who is Ptolomy
100
Astronomers divide the sky into 88
What are constellations
100
This was the first type of telescope made
What is a refracting telescope
100
The length of a day on earth is based on
What is the rotation of the earth on its axis
200
This is made of all the wavelenghts of electromagnetic ratdiaton
What is the electromagnetic spectrum
200
The first scientist to use a telescope to observe the night sky
Who is Galileo
200
this is the line where the sky and the earth appear to meet.
What is the horizon
200
A reflecting telescope uses these to gather and focus light
What are curved mirrors
200
If earth rotated faster what would be shorter
What are days
300
This is the unit of distance equal to the distance that light travels through space in one year.
What is a light year
300
The calendar most widely used today was first developed by waht group of people
Who are the Romans
300
This is a measure of how far east an object is from the vernal equinox
What is right ascension
300
Two reason why observatories are on mountaintops in lowly populated areas
What are air & light pollution id reduced and the air is thinner
300
This is the angle between an object in the sky and the horizon
What is altitude
400
This group of people developed astronomy as a science. They invented the astrolabe, algerbra, and the number system used today
Who were the ancient Arabs
400
His theory was unpopular when first proposed because it has helocentric.
Who is Copernicus
400
These can be seen all night long during the entire year because they are above the earth's axis or poles
What are Circumpolar stars
400
The reason why most astronomers use the reflecting telescopes
What is the image can be distorted and blurred when using refracting telescopes with large lenses.
400
This theory proposed that the sun was the center of the universe
What is Copernicus' theory
500
Your latitude, the time of year, and the time of night all influence
What is the stars that you see in the sky
500
The father of modern astronomy
Who is William Herschel
500
This surrounds the earth and is what we look through when we observe the sky.
What is the celestial sphere.
500
Besides reflecting and refracting telescopes name two other types of telescopes used.
What are: gamma ray, radio, x-ray, infrared
500
This always has an altitude of 90o
What is the zenith