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There is more than one star in the Rigel "system". The main star, in terms of brightness, is Rigel A. That has a surface temperature of about 12,000 degrees Celsius.
It's identical. (assuming that the object is homogeneous)
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Spiral staircase
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mira
Rigel is brighter.
Rigel is not a constellation.
Luminous objects are the objects that responsible for our vision and omit their own light. Stars, radium, LED, and sparks are some of example of artificial luminous object.
Rigel
rigel and spica are two stars
The coordinates of Rigel are
Rigel is pronounced as "RYE-jell".
Betelgeuse is much larger than Rigel. Betelgeuse has a radius about 15 times the radius of Rigel, and a volume of about 3500 times Rigel.
Rigel's temperature is: 11,000 K And the colour is: Blue. To be exact Rigel is a Blue supergiant.
It means: * Calculate the density of an object * Calculate the density of its pieces * Compare