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Sirius is a star, not a planet, and it is not the closest star to Earth or anywhere near being the closest (technically the closest star to Earth is the sun, and the next closest is Proxima Centauri).
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoYes. The Sirius star is only around 9 light-years away from Earth, while Betelgeuse is around 640 light-years away.
Wiki User
∙ 7y agoSirius is about 8.6 light-years from us.Rigel is about 800-900 light-years from us.
So, yes.
Wiki User
∙ 11y agoNO.
Wiki User
∙ 6y agoYes, it is.
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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.
Even though this star has an absolute magnitude greater than that of sirius it looks dimmer from earth since its 100 times farther away?
Rigel has a greater absolute magnitude than Sirius but apears dimmer from Earth do to the farther distance the light waves must travel through space (just a little more information : ), but there are probably alot more stars around that distance
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.
What is the radius of Sirius?
Sirius is actually a double star system consisting of two Stars - Sirius A and Sirius B. The mass of Sirius A is 2.02 solar masses (4.018 x 1030 kg).The mass of Sirius B is 0.978 solar masses (1.945 x 1030 kg).
Which two planets are closer to the sun than the earth is?
Mercury and Venus, in that order, are closer to Sol than the Earth is.
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.
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 star is bigger sirius or rigel?
Rigel is approximately ten times LARGER than Sirius
Does Rigel have greater apparent magnitude than Sirius?
No, which means that Rigel appears brighter.
Why does Sirius appear brighter than Pollux in your nightime sky?
Because Sirius is closer to the earth that's why it is bigger
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).
Are stars hoter than the sun?
Some stars are hotter then the Sun such as Sirius and Rigel.
Even though this star has an absolute magnitude greater than that of sirius it looks dimmer from earth since its 100 times farther away?
Rigel has a greater absolute magnitude than Sirius but apears dimmer from Earth do to the farther distance the light waves must travel through space (just a little more information : ), but there are probably alot more stars around that distance
Why do you see Sirius as the brightest star in the sky?
Sirius is visible because it is a large, bright star, and is closer to Earth than other (actually brighter) stars.
Does Rigel have a bigger black hole than Sirius?
I don't think that either of these stars "have" a black hole.
Why does the sun seem brighter than Rigel?
The sun appears brighter than Rigel does because it is much closer to us by a factor of about 50 million.
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.
