Neutron Star Facts
Neutron Star Facts for Kids
: Neutron Star
Type of Star
: Giant Star (collapsed core)
: Between 1.1 and 2.1 mass
: Jocelyn Bell Burnell
: PSR J0108-1431 and LGM-1
17 Neutron Star Facts for Kids
A neutron star is a collapsed core of a giant star, created from a supernova explosion.
The concept of a neutron star was proposed by Walter Baade and Fritz Zwicky in 1933.
The first neutron star (pulsar) discovered was PSR B1919+21, by Jocelyn Bell Burnell on November 28th, 1967.
Astronomers have discovered over 2,000 neutron stars and estimate there are over 100 million of them in our galaxy.
Existing technology only allows us to detect neutron stars that are less than one million years old.
The closet neutron star to our planet is RX J1856.5-3754. It's around 400 light-years away.
The average diameter of a neutron star is 6.2 miles.
The average mass of a neutron star is 1.4 solar masses (one solar mass = the size of our sun).
The average surface temperature of a neutron star is about 600,000 Kelvin.
A neutron star has a very fast rotation, and a young neutron star can complete many rotations in just one second.
A pulsar is a neutron star that rotates and emits pulses of radiation out of its poles.
A magnetar is a neutron star that as massively powerful magnetic field. A magnetar can have a magnetic field that is a thousand trillion times greater than Earth's.
A radio-quiet neutron star doesn't emit any detectable radio emissions, like a pulsar and doesn't have the same magnetic field that as a magnetar.
A neutron star can be part of a binary system. The binary systems discovered have included other multiple neutron stars, main-sequence stars, white dwarfs and red giants.
Neutron stars are the smallest stars in our universe, however they are also the densest stars in our universe.
To understand the density of a neutron star, imagine one the size of Manhattan Island. While it would only be 13 miles long, it would have a mass 1.5 times the size of our sun.
A supernova explosion will create a neutron star, a block hole or destroy the progenitor.
More Space Facts
Neutron Star Facts
Red Giant Star Facts
White Dwarf Star Facts
Neutron Star Pictures
A photo of the Crab Puslar (PSR B0531+21), a young neutron star.
A photo of the Black Widow Puslar (B1957+20), a massive neutron star.
A photo of PSR J0108-1431, the closest neutron star to planet Earth.
Additional Resources with Neutron Star Facts
Neutron Stars, Pulsars and Magnetars
- Learn about these incredible types of stars on the NASA website.
Neutron Stars - Study Astronomy Online
- Discover more amazing facts about neutron stars on the Swinburne University website.
Neutron Stars and their Gravitational Waves
- Learn about the incomprehensible mass and density of neutron stars.