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What is the name for the celestial body of interstellar gas and dust where stars are sometimes born?
105Is the gravitational pull on an object equalized if the object is at the centre of a planet, i.e. Surrounded by the mass of the planet, which is creating the gravity?
121When a superior planet is at quadrature in reference to the earth, what is its elongation in degrees?
173Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
112Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
189According to keplers third law, plotting the squares of the periods of the planet against the cubes of the semi- major axes of their orbits will result in what sort of graph?
146
What are gamma ray bursts?
How many planets are in the new solar system?
What do astronomers call the point in the sky that is directly overhead?
Tell me how many moons do ceres have?
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?
What are the only two planets to rotate from east to west?
Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
Which moon is the only other body in our solar system, besides the earth, that has an atmosphere of mostly nitrogen?
The hydrogen envelope that surrounds the comets nucleus derives its hydrogen most directly from?
How many moons does saturn have?
How many moons do Mars planet have?
How do clouds form?
Sam langley invented what instrument, which allows astronomers to measure the energy output of the sun and other stars?
According to keplers third law, plotting the squares of the periods of the planet against the cubes of the semi- major axes of their orbits will result in what sort of graph?
What is the thinnest layer of the suns atmosphere?
