81⟩ The work of this Harvard College Observatory scientist made possible the first accurate determination of extragalactic distances by what is often called Henriettas Law
Henrietta Leavitt
Astronomy
Home Education and Science Astronomy
“Astronomy Interview Questions and Answers will Guide us now that Astronomy is the scientific study of celestial objects such as stars, planets, comets, and galaxies and phenomena that originate outside the Earths atmosphere such as the cosmic background radiation. Learn the basic and advance Astronomy Concepts by out Astronomy Interview Questions and Answers Guide.”
97 Astronomy Questions And Answers
82⟩ What is the name for the celestial body of interstellar gas and dust where stars are sometimes born?
Nebula
83⟩ What term is most commonly used to refer to the actual motion that stars have in relation to each other, and over many years will lead to changes in the shapes of constellations?
Proper Motion
84⟩ In a search for Planet X, this celestial body was found after astronomers had searched for an orbital disturbance of the planet Uranus
Pluto
85⟩ What is the constant called that is the average flux of the Suns energy arriving at the Earth
Solar Constant
86⟩ What moon of Neptune orbits in a retrograde direction?
Triton
87⟩ This powerful telescope weighs about 11 tons, has a primary mirror 7.9 feet in diameter, and orbits about 380 miles above the earth
The Hubble Telescope
88⟩ The Persieds Meteor Showers are viewed in the State of Maine during what month?
August
89⟩ How many half- moons are there in a lunar cycle?
2
90⟩ In the Doppler effect, what is the correct term for the change in the color of light when an object that is emitting light is moving toward the observer?
Blue-Shift
91⟩ What is the thinnest layer of the Suns atmosphere?
The Corona
92⟩ If the temperature of a star increases from 10,000K to 30,000K, by what factor will the rate of energy radiated per second increase?
81
93⟩ The Magellan clouds are actually what type of celestial body?
Galaxies
94⟩ What are the only two planets to rotate from East to West?
Venus And Uranus
95⟩ These doughnut shaped zones of atomic particles consists of electrons and protons captured by the Earths magnetic field from the solar winds and are called
VAN ALLEN BELTS
96⟩ Most astronomers believe that these celestial bodies are at the center of quasars and are the main reason for their large energy emissions
Black Holes
97⟩ Sam Langley invented what instrument, which allows astronomers to measure the energy output of the Sun and other stars
Bolometer
