Show:
Measurement and Classification
Astronomers & their Contributions
Characteristics of Galaxies
Astronomical Instruments
100
True or False: the disk of the Milky Way is approximately 20,000 ly in diameter.
What is False?
100
True or False: Shapley found the distance to the center of the galaxy by studying the distance to open clusters.
What is True?
100
True or False: the center of our galaxy shows signs of past eruptions.
What is True?
100
A telescope that uses mirrors.
What is a reflecting telescope?
200
A galaxy that contains mostly upper main sequence stars, gas, and dust.
What is an E class galaxy?
200
Two answer response, Tycho Brahe’s greatest contribution to astronomy was –
What is His model of the Universe and His 20 years of careful observations of the planets?
200
The center of our galaxy lies in the direction of the constellation of ...
What is Sagittarius?
200
The instrument is no longer the most common design used in research, and suffers from chromatic aberration
What is the refracting telescope?
300
This measurement of a Black Hole is equal to the Schwarzschild radius.
What is the event horizon?
300
True or False: Galileo Galilei was the astronomer who developed three laws of planetary motion which modified the Copernican ideas
What is False?
300
What is the center of the zodiac and the apparent path of the sun around the sky.
What is the ecliptic?
300
Two telescopes that are most suitable for making observations on a cloudy day.
What are the radio telescope, and the infrared telescope?
400
A wave that produces the largest amount of energy on the electromagnetic spectrum.
What is Gamma
400
Space-Time
What is Einstein's four-dimensional fabric in the universe?
400
The position of the planets and the direction of swing of a freely swinging pendulum provides evidence for this phenomena.
What is why the Earth rotates?
500
In light-years, a megaparsec is equal to --
What is 3.26 light-years.
500
Three answer response, Ptolemy’s model of the universe –
What is was heliocentric, included elliptical orbits, and contained epicycles?
500
The term to describe whenever two galaxies collide.
What is Galactic Cannibalism?