The brightness of a star depends not just on its surface temperature, but also on its size and distance from Earth. While Rigel is hotter than the Sun, it is also a much larger and more luminous star. Therefore, even though the Sun is cooler than Rigel, it appears brighter to us because it is much closer and has a larger luminosity due to its size.
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.
The star Rigel in Orion's belt is 900 light years away what does that translate to in kilometers?
Rigel is in Orion, but not in its belt. It is the very bright star at the bottom right as we look at Orion. It is estimated to be anything between 700 and 900 light years away. 700 light years would be about 6,612,165,304,151,910 kilometres and 900 light years would be about 8,501,335,391,052,460 kilometres.
What colors do Rigel and Beltergeuse stars appear to us?
Rigel appears bluish-white in color, while Betelgeuse appears reddish-orange to the human eye.
Who discovered blue giant stars?
Blue giant stars were not discovered by one person, as they have been observed and studied by astronomers over time. However, they were first classified and extensively studied by Annie Jump Cannon and Ejnar Hertzsprung in the early 20th century.
How many moons does rigel have?
At over 772 light years away, it is difficult to say if this Star has any planets, yet alone if there are any moons of those planets. Theres a chance, but we may never know the answer.
No. Rigel's effective temperature is 12100 K compared to the Sun's 5778 K.
Rigel is actually a triple star system. Rigel A is a blue-white super-giant; the other two are blue-white main sequence stars.
Is Rigel temperature higher than the sun?
Yes. Rigel's effective temperature is 12100 K compared to the Sun's 5778 K.
How much hotter is Rigel than the sun?
Rigel's effective temperature is 12100 K compared to the Sun's 5778 K. Since these temperatures are on the absolute scale, it is possible to say that Rigel is approx 2.1 times as hot.
What constellation is the star Rigel in?
The Rigel star is a star in the Orion constellation. Rigel is the brightest star in the Orion constellation, and it is the seventh brightest star seen in the night's sky.
Which star is hotter rigel or aldebaran?
Rigel, has a surface temperature of 12100 K, approx 3.1 times as hot as Aldebaran (3910 K).
What does the star Rigel mean?
The name Rigel derives from the Arabic Rijl meaning left foot. Since Rigel represents Orion's left foot, the name seemed kind of obvious.
What would happen if the sun was replaced by Rigel?
It wouldnt be good because it might even destroy our 4 inner planets, we would have to be as far as Pluto. Even if we are as far as Pluto ,Rigel's color is blue and would affect our normal light
What will happened when star rigel travels in the Earth?
The Earth will be long destroyed by our own sun before that happens.
What is the temperature of 8 million star Rigel?
Rigel's effective temperature is 12100 K. 8 million Rigels would not be 8 million times at hot. In fact, in all likelihood the super-Rigel could well have become a super-massive black hole and be incapable of radiating at any temperature..