Astronomical Units
This unit is equal to the distance light travels in a year
Light-year (ly)
Convert the following to Scientific Notation:
1300
1.3 x 103
Polaris is also known as
The North Star
The geo-centric model has what at its center?
Earth
Came up with the heliocentric model of the universe
Copernicus
Shortest unit for distance used in astronomy, useful for distances between the Earth and the moon or the size of moons and planets.
Kilometer (km)
Convert the following to Scientific Notation:
1,030,000
1.03 x 106
A collection or group of stars that appear to form a picture
Constellation
Observed that the bottoms of ships would disappear first over the horizon suggesting that the earth was round
Aristotle
Acquired a telescope and refined and improved it for precise and detailed astronomical observations.
Galileo
The distance between the Earth and the sun, useful for distances within the solar system
Astronomical Unit (AU)
Convert the following to Scientific Notation:
0.0056
5.6 x 10-3
Stone henge alignes with the sun during what time of year?
Summer solstice
Measured the angles of sunlight coming in at two Egyptian cities, concluded that the Earth was a sphere and used his measurement to calculated the circumference of the Earth
Eratosthenes
Known for his work in measuring and calculating the relationship between gravity, mass, and the distance of objects.
Newton
Useful for measuring distance between stars and galaxies (there are two units that work here)
Light-year (ly), parsec (pc)
Write the following number in regular/standard notation.
7.78 x 101
77.8
What time of year would the two sun daggers sit on both sides of the main Spiral?
Winter Solstice
Created extensive star catalogues of 850 stars and recorded their relative brightness and magnitude
Hipparchus
Came up with the 3 laws of planetary motion and realized that the orbits of planets were elliptical and not perfect circles
Kepler
Is equal to 3.26 light years
Parsec (pc)
Write the following number in regular/standard notation.
9.8 x 100
9.8
What star would you be unable to see from the Earth's southern hemisphere because the Earth itself would block it from view?
Polaris
Came up with an advanced geocentric model of the universe, including epicycles and planetary motion
Ptolemy
Was a mathematician of significant influence and created advanced and precise astronomical measuring devices.
Tycho