What would happen if the Moon was replaced with a black hole of equal mass?

If the Sun were replaced by a black hole of the same mass, the Earth’s orbit wouldn’t change, although life on Earth might. The Earth’s orbit is stabilized by the Moon, but the lunar-mass black hole would probably serve the same role. This black hole Moon would be pretty low-profile.

What would happen to the Moon if the Earth suddenly collapsed into a black hole of equal mass to the current Earth?

4 Answers. If the earth is changed into an earth-mass black hole, the only effect on the Moon’s orbit will be a change in the back-reaction on the Moon of the tidal forces that the Moon exerts on the Earth, as well as subtle changes in the Moon’s motion due to quadrupole corrections to the Earth’s gravitational field.

What would happen if the sun magically turned into a black hole of the same mass?

Our Sun is too small a star to end its life as a black hole. But what would happen if the Sun were suddenly replaced with a black hole of the same mass? Contrary to popular belief, the Solar System would not be sucked in: a solar-mass black hole would exert no more gravitational pull than our Sun.

Is Earth moving towards a black hole?

Bottom line: A new project to map the Milky Way has shown that Earth is both moving faster and is closer to the supermassive black hole at the center of our galaxy than previously thought. The new number is 25,800 light-years from Earth, in contrast to the 27,700 light-years established by the IAU in 1985.

What if Earth was pulled into a black hole?

Our atmosphere would start to be vacuumed up. And then huge chunks of the Earth would rip apart and follow suit. If Earth managed to fall into the orbit of the black hole, we’d experience tidal heating. The strong uneven gravitational pull on the Earth would continuously deform the planet.

What would happen to the Moon if there was a black hole?

Black Hole Moon. When you’re floating outside a spherical mass, its pull on you is the same regardless of whether the mass is concentrated at the center of the sphere or spread out throughout it. If the Sun were replaced by a black hole of the same mass, the Earth’s orbit wouldn’t change, although life on Earth might.

Could a black hole stabilize the Earth’s orbit?

The Earth’s orbit is stabilized by the Moon, but the lunar-mass black hole would probably serve the same role. This black hole Moon would be pretty low-profile.

How does the mass of the moon affect its orbit?

The Moon orbits the Earth without falling into the Earth (thus succumbing to Newton’s universal law of gravity) by counteracting this gravitational force with an equal an opposite centripetal force: So, as you can see, the mass of the Moon (m) does not come into play. The orbit would not change.

What would happen if a black hole devour all matter?

A black hole can’t devour matter too fast, though, because at some point it would be producing so much radiation that it would blast its own “food” away. This is called the Eddington limit. If our black hole were devouring matter at the Eddington limit, it would be hot enough to sterilize the Earth.