What is the name for the celestial body of interstellar gas and dust where stars are sometimes born?
77Is 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?
90When a superior planet is at quadrature in reference to the earth, what is its elongation in degrees?
85Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
75Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
124According 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?
130
Who were the ancient astronomers of the west?
Which was the vehicle used for the first landing on the moon?
When was the first american manned space mission to moon begun?
Explain how do clouds form?
How many planets are now in the solar system?
Maria on the moon are?
Which is the brighest star?
Do black holes really exist?
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?
How many moons does uranus have?
Explain how does gravity affect life on pluto?
Tell me how many moons do ceres have?
What substance is responsible for neptunes blue-green color?
How many planets are in the new solar system?
