What is the name for the celestial body of interstellar gas and dust where stars are sometimes born?
The 29 days it takes the moon to complete an orbit around the earth is called a?
A meteor that reaches the surface of the earth is more accurately called a?
Is 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?
Which of the is not another name for the pleiades?
The celestial coordinate analogous to latitude is called?
Name the part of the sun that we can see without any instruments?
When a superior planet is at quadrature in reference to the earth, what is its elongation in degrees?
Maria on the moon are?
Astronomers usually detect the electromagnetic emissions of a single neutron star in what single form?
What is the thinnest layer of the suns atmosphere?
How many half- moons are there in a lunar cycle?
Which of the pulsating variable star whose brightness varies in a very regular time period of about 1-50 days?
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?
The magellan clouds are actually what type of celestial body?
