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That's the approximate radius of a neutron star, a.k.a. a pulsar.
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∙ 11y ago
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What is the circumference of a circle that has a 1.8 km radius?
A circle with a radius of 1.8 km has a circumference of 11.31 km
What is the radius of a circle that has a diameter of 48 km?
radius = 48/2 = 24 km
What is the radius and diameter of venus?
Radius = approx 6050 km, so diameter = 12100 km.
What is the volume of a sphere with a radius of 687 km?
A sphere with a radius of 687 km has a volume of 1,358,184,658.3 km3
What is the circumference of a circle with radius 5 km?
C = 31.4 km
How big is barnards star?
It has a radius of between 0.15 and 0.20 that of our Sun. The Sun has a radius of about 696,000 km, so Barnard's Star has a radius of between 104,400 km and 139,200. Average about 121,800 km
Which is about the size of a city giant black hole white dwarf neutrons star?
Neutrons star is the same size of a city. This is 10 km radius.
What is the radius of vega the star?
The diameter of the vega is 4315000 km
How big is the Sun compared to the largest star?
The largest known star "VY Canis Majoris" has a 987,600,000 km radius whereas the sun only has a puney 695,500 km radius.
Can a star be the size of a grape?
The smallest object that can reasonably be called a "star" is a neutron star, which is pretty small but still much, much larger than a grape, at about 10-12 km radius.
What size of star is your sun?
The sun has a radius of approx 696,000 kilometres. By way of comparison, the earth's radius in 6,371 km.
If the star spica was set in the center of the solar system how far would it extend?
Spica has a radius of about 5,150,400 km whereas the Sun has a radius of 696,000 km. So the "Spica Sun" would extend another 4,454,400 km into the Solar System.
What is the area of a 10km radius in square km?
The area of a circle with a radius of 10 km is πr^2, where r is the radius. In this case, the area would be approximately 314.16 square kilometers.
What is the radius of a G2III star?
The radius of a G2III star can vary, but on average it is around 10 times the radius of the Sun. This class of star is typically larger and brighter than the Sun, but smaller than supergiant stars.
What is the radius of planet mars?
The average radius of Mars is about 3,389.5 kilometers.
If a neutron star has a radius of 10 km and rotates 642 times a second what is the speed of the surface at the neutron star's equator in terms of the speed of light?
The Radius of the Star is 10 KM. Now we need to find the diameter. Circumference equals pi times the Diameter. That is twice the Radius, which is 20. Now we need to get the Diameter. We multiply the diameter by pi. 20 times 3.1416. 20 * 3.1416 = 62.838. Now we multiply the circumference in kilometers by the speed. 62.832 * 642 = 40,338. Now we take the speed of light, 299,997 per second and divide it into the speed of a point on the equator of our star going 40,338 kilometers per second. 40338 / 299997 = 0.1345
How big is V.V. Cephei in km?
V.V. Cephei is a red supergiant star with a radius estimated to be around 1,050 times that of the Sun. Considering the Sun's radius is about 695,700 km, V.V. Cephei's radius would be around 730 million km.
