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Thursday, 1 September 2016

Neutron star

A neutron star has a mass comparable to that of our Sun, but as it is only about 10 kilometers (6 mi) in radius, it has an average density 1 quadrillion times that of water.

A neutron star is so dense that one teaspoon (5 milliliters) of its material would have a mass about 900 times the mass of the Great Pyramid of Giza.

Just a sugar cube of neutron star matter would weigh about one hundred million tons on Earth due to its incredible density.

The first direct observation of a neutron star in visible light. The neutron star is RX J1856.5-3754

Such a large mass in such a small volume produces an intense gravitational force: objects weigh 100 billion times more on the surface of a neutron star than on the surface of the Earth.

The gravitational force of a typical neutron star is such that if an object were to fall from a height of one meter, it would only take one microsecond to hit the surface of the neutron star, and would do so at around 2000 kilometers per second, or 7.2 million kilometers per hour.

If you jumped off a ledge five feet from the surface of a neutron star, you would hit the ground at a speed of 4,000,000 miles per hour.

The gravity of a neutron star is so strong that parts of the opposite side can be seen from the front, as light is bent around it.

The temperature inside a newly formed neutron star is from around 1011 to 1012 kelvin (738 celsius). However, the huge number of neutrinos it emits carry away so much energy that the temperature falls within a few years to around 106 kelvin (-167 celsus).


The fastest spinning Neutron Star we know about spins 716 times per second.

Source Wikipedia

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