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Betelgeuse Alpha Centauri Polaris Antares Which of these stars are closest to the earth?
Every star is pretty huge, compared to anything in our life experience.
In size.
- Betelgeuse: Red giant. Diameter 1,180 solar radii.
- Aldebaran: Orange giant: 45 solar radii.
- Alpha Centauri - Which one? A, B or C. For A, yellow dwarf: 1.22 solar radii.
- Polaris: Which one? A, Ab, B , C or D? For A, bright giant, 46 solar radii.
So a simple question can be so difficult. All are giants except Alpha Centauri, however, as this is a homework question, the teacher is obviously looking for Betelgeuse.
What else can I help you with?
What is the second star in the alpha centauri star system?
Alpha Centauri, although it appears to the naked eye as a single star, is a binary pair. Together they are designated Alpha Centauri AB, the more massive and luminous in the pair designated Alpha Centauri A, the less massive and luminous Alpha Centauri B. Together, this pair is the third brightest "star" in the night sky. There is a third star probably interacting gravitationally with the pair, Proxima Centauri, also designated Alpha Centauri C, a red dwarf which is not visible to the naked eye but is the next closest star to our Sun. Alpha Centauri B has about 90% of the mass of our Sun and is about 45% as bright. Note that Alpha Centauri B is not the "second" star (second brightest) in the constellation Centaurus: that is Beta Centauri, which is itself a trinary star system.
What star is the closest to us in the milky way?
The Sun is "really" the closest star at 150,000,000 km (93,000,000 miles)Proxima Centauri is the closest star to us, at a distance of approximately 4.2 light years.(Proxima is Latin for "next to" or "nearest to")Alpha Centauri is the closest star system to us at a distance of approximately 4.3 light yearsThe Centauri system is a triple star system Centauri A and B have a mean separation of 11 AU's and are similar in size and temp to the Sun.Centauri C is a red dwarf it can not be seen with the unaided eye and was not discovered until 1918See related link for more information.
What galaxy is Proxima Centauri located?
Alpha Centauri is not a single star but a multiple star system.The two main stars are Alpha Centauri A and Alpha Centauri B. These orbit each other fairly closely (closely enough that despite them being only a little over four-light years from Earth, they appear as a single star to the naked eye).Considerably further away from the two (but still close, by astronomical standards) is the star known as Proxima Centauri. It's believed to be gravitationally associated with (i.e. orbiting) the AB pair and is also known as Alpha Centauri C. Proxima is far enough from AB that, if it were bright enough to be seen with the naked eye, it would appear as a distinct star (in fact, it's a couple of degrees from AB; about four times the width of the full Moon).Because of its orbit (if it's in orbit, which we don't actually know for sure ... it might just happen by coincidence to be passing close by), Proxima is currently nearer to us than A and B are, hence the name.
How do star trails form?
Stars usually don't have "trails". If you see a "shooting star", that is not really a star, but a piece of dust that happens to fall into the atmosphere. It is also possible that you confuse this with pictures you saw of comets.
Can i see Astronomers with powerful telescopes can see all the stars in the milky way?
No. Approximately 6000 stars can be seen with the naked eye, but there are many trillions of star out there that we can NOT see with the naked eye. Even the closest star after the Sun - Proxima Centauri - can't be seen without telescopes.
Which of these stars is closest to the earth Polaris Antares or Betelgeuse?
Polaris is the closest of the three stars.
What do Betelgeuse and Alpha Centauri have in common?
Betelgeuse and Alpha Centauri are both prominent stars in the night sky. They are relatively close to Earth in astronomical terms, with Betelgeuse being a red supergiant in the constellation of Orion, while Alpha Centauri is a triple star system closest to our solar system.
Is Betelgeuse the closest star to earth?
No, Betelgeuse is not the closest star to Earth. The closest star to Earth is the sun, which is part of our solar system. Betelgeuse is a red supergiant star located in the constellation of Orion, approximately 642.5 light years away from Earth.
Why might a Proxima Centauri look dimmer than a Betelgeuse?
Proxima Centauri has an insignificant luminosity to Betelgeuse. Although it is the closest known star(4.2 light-years) to our Sun, it is virtually impossible to see because it is so dim. Betelgeuse, on the other hand, is a lot farther (640 light-years). Yet, it is one of the brightest stars in our night sky. This is because Betelgeuse has an extremely high luminosity.
Which star is actually composed of 3 stars forming a triple star system?
Polaris (the North star - Alpha Ursae Minoris) is a triple star system, but appears to us as a single star. Alpha Centauri is also another triple star system. And there are many more.
What is the closest system to your sun?
The closest star system to our Sun is Alpha Centauri, which consists of three stars: Alpha Centauri A, Alpha Centauri B, and Proxima Centauri. Proxima Centauri is the closest to the Sun at a distance of about 4.24 light-years.
Pole star is nearest to your solar system?
The Pole Star (Polaris) is not the closest star to our solar system. It is located about 434 light-years away. The closest star to our solar system is Proxima Centauri, which is part of the Alpha Centauri star system and is located about 4.24 light-years away.
Is alpha centauri the farthest star from the earth?
No; in fact, the Alpha Centauri system is the closest star system to Earth.The closest star to us is the Sun; the next-closest star is Proxima Centauri, part of the Alpha Centauri system.
What stars are near in the earth?
The Sun is the closest star. Next closest are the three stars of the Alpha Centauri system, of which the closest is Proxima Centauri.
What star is closest to the sun other than proxima centauri?
Alpha Centauri
Is Alpha-Centauri the closest star to the Sun?
Alpha Centauri is the second-closest, at 4.5 Light Years away. The closest star is Proxima Centauri, which is 4.2 light years distant. However, Alpha Centauri is a star very much like our Sun, while Proxima Centauri is a very dim dwarf star, hardly visible from Earth even though it is closest.
What is the closest star to our Sun?
Proxima Centauri is the closest star to our sun-- but it's neighbor, Alpha Centauri, is nearly the same distance.
