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No, there are lots of red giant stars, too many to count. Betelgeuse and Aldebaran just happen to be close to us and bright in the sky, so we see them easily.
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Is Betelgeuse the oldest star?
No, large stars like Betelgeuse only last a few million years. Our sun is older, at around 4.5 billion years, and there are many stars even older than our sun.
What kind of stars are there?
there are 2 stars i only know that is the white dwarf and the red giant
Which is older Betelgeuse or Rigel?
Betelgeuse is probably older, but it's hard to give exact ages for stars. Both of them are only a few million years old, much younger than our 4 billion year old sun. See related questions for more details on the ages of those stars.
What are facts about Betelgeuse?
Betelgeuse is the eighth brightest star in the night sky and the second brightest star in the constellation of Orin. It is classified as a Red Giant. Astronomers believe that Betelgeuse is only 10 million years old, but has evolved rapidly due to its high mass. Betelgeuse is made from: Helium, Carbon, and Oxygen. Astronomers don't know when but they are sure that Betelgeuse will explode and become a SuperNova. Betelgeuse is 700 million miles in diameter and the surface temperature is 6,000 degrees Fahrenheit. Its luminosity is about 10,000 times the Sun and it's the first star to be directly imaged by a telescope. Finally Betelgeuse is visible in winter skies from the Northern Hemisphere in the constellation Orion. Hope that Helped You :)
Why does Rigel shine just as brightly as Betelgeuse?
Even though Betelgeuse is much larger, Rigel is brighter due to its much higher temperature. Rigel is about 11,000 K and Betelgeuse is only about 3,500 K.
Is Betelgeuse the oldest star?
No, large stars like Betelgeuse only last a few million years. Our sun is older, at around 4.5 billion years, and there are many stars even older than our sun.
What color is Aldebaran?
Aldebaran or Alpha Tauri is a Orange Giant star of type K5III about 65.2ly from Earth. All hydrogen fusion has ceased in the core of the star and has moved to a shell surrounding the core. Due to gravitational forces the temperature in the core of the star has greatly increased but is not currently sufficient for Helium fusion. As a result the star has increased in diameter dramatically. With the mass of 1.7 solar masses it has a diameter 44.2 times that of the sun. As the star matures eventually helium fusion will begin in the core and will become a Red Giant Star.
Is a nebula bigger than betelgeuse?
In general yes because Betelgeuse is only a single star, albeit a big one. Nebulae are huge clouds of gas within which stars form
What are the stars in solar system?
Rigel, Betelgeuse. Comment: They are two of my favourite stars, but they aren't in the Solar System. There's only the Sun that's a star in our Solar System.
What kind of stars are there?
there are 2 stars i only know that is the white dwarf and the red giant
Which is older Betelgeuse or Rigel?
Betelgeuse is probably older, but it's hard to give exact ages for stars. Both of them are only a few million years old, much younger than our 4 billion year old sun. See related questions for more details on the ages of those stars.
What is the main way the stars differ?
Primarily in mass. Smaller stars are smaller and dimmer, and live longer; more massive stars are bigger, LOTS brighter, and die sooner. A small star - or even an average star like our Sun - will last for billions of years. A giant star like Betelgeuse or Sirius will go supernova and blow itself apart in only a few million years.
What planet is in between the star algol and aldebaran?
Jupiter is the only bright planet near Aldebaran just now (Feb. 2013).
Is Betelgeuse bigger than Jupiter?
Betelgeuse is a red super giant, relatively luminous, and one of the largest stars known. For comparison, if the star were at the center of our solar system its surface might extend out to between the orbits of Mars and Jupiter, wholly engulfing Mercury, Venus, Earth and Mars. Astronomers believe Betelgeuse is only a few million years old, but has evolved rapidly because of its high mass.Betelgeuse is one of the most luminous stars known. It is a red giant expected to go supernova possibly within the next one million years. It has been known for over two hundred years as a very "restless" star, varying in brightness, and varying in diameter, too (it is difficult to give an exact measurement for the star, because it is constantly changing).Betelgeuse is a red super-giant star "relatively" close to Earth; ONLY 640 light years away.The larger the star, the more quickly it dies. Betelgeuse is very young as stars go, less than ten million years old. It will most likely die in a supernova explosion within the next few thousand years; in fact, it may have already done so, and the light of that explosion could be on the way. When this happens, Betelgeuse will be brighter than the full moon. Considering its probable fate, we wouldn't want it to be any closer!Betelgeuse is easily visible; it is the red star in the shoulder of Orion.See related questions.
Why is Betelgeuse red?
Simply put. No it's not, Not in terms of Mass or Radii. While it's one of the largest stars in our neck of the woods(within 1000 lightyears around the sun) Before I go on let me give you some facts about Betelgeuse/Alpha Orionis . Betelgeuse is a M2I-a Supergiant/Hypergiant star. its around 600 light years away which is a recent finding as just a few years ago we thought the star was 540-560ly away. Betelgeuse Has a Solar Mass of 18 or 19 solar masses and a solar radii of 936. Now i can move on to some other stars that are much larger then Betelgeuse. 1. VY Canis Majoris- This star has a solar radii of a mind boggling 2100 solar radii that's over 2 times the size of betelguese 2. Eta Carina- This MASSIVE star tips the scales on how much mass a star can have at a whooping 150 solar masses. that's 7.8x heavier then betelgeuse Look up the Quintuplet Cluster for more larger stars then betelgeuse cause we astronomers look at that particular cluster to observe how big stars can actually get, since its towards the galactic center and we believe that the galactic center favors larger objects. Any how I hope i was some help.
What are facts about Betelgeuse?
Betelgeuse is the eighth brightest star in the night sky and the second brightest star in the constellation of Orin. It is classified as a Red Giant. Astronomers believe that Betelgeuse is only 10 million years old, but has evolved rapidly due to its high mass. Betelgeuse is made from: Helium, Carbon, and Oxygen. Astronomers don't know when but they are sure that Betelgeuse will explode and become a SuperNova. Betelgeuse is 700 million miles in diameter and the surface temperature is 6,000 degrees Fahrenheit. Its luminosity is about 10,000 times the Sun and it's the first star to be directly imaged by a telescope. Finally Betelgeuse is visible in winter skies from the Northern Hemisphere in the constellation Orion. Hope that Helped You :)
Is a star Betelgeuse luminous?
There's only one star that we call 'Betelgeuse', and that one is very highly luminous.
