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Rigel is approximately ten times LARGER than Sirius
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∙ 7y ago
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Is Sirius brighter than the sun?
Yes it is much bigger.Probably 5 suns can fit in sirius.Not only is sirius bigger but it is much hotter as well.
What is the orbit of sirius?
Sirius is a star therfore is doesnt orbit. Furthermore sirius is to distant for us to obtain such information.
Brightest star in the sky?
The brightest star in the sky, is our Sun. It is a star. After the Sun, Sirius is the next brightest star, or the brightest in the night sky.
What is the brightest object in the sky apart from th sun and moon?
The brightest OBJECTS in the sky, after the Sun, are the Moon, followed by planets Venus, Jupiter, and Mars (on rare occasions, Mars is brighter then Jupiter), followed by the star Sirius.The brightest stars proper are Sirius, followed by Canopus, Toliman, Arcturus, Vega...
What is the distance of sirius to the earth?
About 8.6 light-years or 8.6 yrs x 365 days/1 yr=3139 days * 24 hr/1day=75,336 hrs *60 secs/1hr=4520160 secs * c (speed of light 186,000 miles/sec)=84,749,760,000,000 miles from Earth.......(or how much our country with be in debt by 2020 LOL )
What star has a greater magnitude a Rigel or Sirius?
Sirius, which means that Rigel is brighter.
Which star has the less absolute magnitude rigel or Sirius?
Sirius has less absolute magnitude than Rigel. Sirius is smaller and less luminous than Rigel, but much closer to us, so Sirius appears brighter. Sirius, in fact, is the brightest star in our sky (with the exception of our own star, the sun.) Rigel is still pretty bright, but many times farther away from us than Sirius.
Which is brighter Sirius or Rigel?
Sirius has a luminosity of: 25.4 while Rigel has a luminosity of: 66,000 Making Rigel brighter than Sirius.
Is the star rigel bigger then the sun?
yes it is
Does Rigel have a bigger black hole than Sirius?
I don't think that either of these stars "have" a black hole.
What does rigel have brighter then Sirius?
I'm not sure exactly what detail you want, but here's a start. Rigel is a triple star system. The main star of the three is a very luminous star. It is a blue supergiant star.
Even though this star has an absolute magnitude greater then that of sirius it looks dimmer from earth since it's 100 times farther away?
The apparent brightness of a star depends mainly on (1) its absolute (i.e., real) brightness, and (2) the square of its distance from us. The absolute magnitude of Sirius is +1.45, while that of Rigel is -6.95, meaning that Rigel is approximately 2,290 times as bright as Sirius. However, Rigel is approximately 100 times as far from us (870 light years versus 8.6 light years), which reduces its brightness relative to Sirius by a factor of over 10,000. This makes Sirius about 4.5 times brighter than Rigel for a difference of 1.62 magnitudes (-1.44 relative magnitude for Sirius versus +0.18 for Rigel).
Is a sirius star bigger than a barnard star?
Yes, Sirius is quite big while Barnard's star is small.
Why does Rigel not look as bright as Sirius?
Because Rigel is much farther away. Rigel is 770 light-years away, and Sirius is only 8.6 light-years away.
Does Rigel have greater apparent magnitude than Sirius?
No, which means that Rigel appears brighter.
What is the bright bluish star?
Without knowing direction of even hemisphere, it's difficult to be precise. A best guess would be Sirius or Rigel.
What is a star larger than the sun?
there are many stars larger than the sun. for ex. vy canis majoris, the largest star known, rigel, sirius, r136a1 etc.
