Nothing at all. Mass and center of gravity is all that counts. If the Sun expanded so that the Earth was inside its envelope (ignoring heating and drag). the Earth would feel less pull and thus expand its orbit.
Black holes can't be one solar mass; they must be at least three or four solar masses. But if this were possible, they don't give off heat, so we would freeze. And die. Everyone.
it will attract more heat to closer and farther planets
Earth has already happened, just look around you!
As unlikely as this is, no one above or below the equator would ever see the moon.
Well, last time I checked, the moon orbited the earth, not the sun. You might , however, argue, that it orbits the sun TOGETHER with earth, then it would take a year to make a full circle around it.
the earth would be destroyed
I am assuming that you meant 'If Earth's magnetic field collapsed for a few seconds' If that's the case then nothing much would happen here on Earth. But if it collapsed for a long time, the Earth would loose it's atmosphere and every living thing on Earth would die. If you are really asking what would happen if the Earth's gravitational field collapsed, then we would be floating around in the air and then come, hopefully, back gently on land again.
allways one half of earth only will get sunlight
Techincally speaking that would never happen. The moon would have to be VERY close to the Earth. The moon moves away from the earth 1.75 inches away from the earth each year, making the hours of the day longer. If the moon did orbit the earth in one day, this would happen around the time period the moon formed in space.
Galileo initially showed using phases of the planet venus that it orbited around the sun and not the earth, this supported a new model developed by Copernicus suggesting that the earth orbited the sun and not vice versa. It had always been assumed that the moon orbited the earth. Later with the invention of Newtonian physics, a more concise model of the solar system was developed using the laws of gravity explained that the much smaller earth would orbit around the much larger sun and that the smaller moon would orbit the larger earth.
No
If Earth orbited 96% closer than it currently does, its orbit would be, on average, 3.72 million miles (6 million km).
The centripetal force holding the earth on its axis will be so great that the gravity keeping the earth and the sun at the same distance will not be enough to keep the Earth close to the sun. We would essentially fly off into the nothingness of space and die.
Earth has already happened, just look around you!
The sun's gravity would pull the earth in to it and the earth would burn up
Techoledge
Techoledge
Orbital patterns are determined by the mass of the body they are orbiting. So to answer your question a comets of a set mass would have a different orbit around the sun then the earth.
A lunar eclipse happens when the Moon passes through the Earth's shadow. Earth always has a shadow, which is created by the Sun. On those rare occasions when the Moon, Earth and the Sun are all lined up just right, the Moon passes through this shadow.This would happen every full moon if the Moon orbited around the Earth in the same plane as the Earth orbits around the Sun.