Table of Contents
What is a red supergiant called?
The five largest known supergiants in the galaxy are red supergiants: VY Canis Majoris, Mu Cephei, KW Sagitarii, V354 Cephei, and KY Cygni. Each of these stars has a radius larger than 1500 times the size of the Sun. In comparison, regular red giant is only 200 to 800 times the size of the Sun.
What are the names of the red giant?
Aldebaran, Arcturus, Betelgeuse and Mira are red giants.
What is an example of a red supergiant?
An example of a red supergiant star is Antares. 119 Tauri, Betelgeuse, Mu Cephei, Stephenson 2-18 and VV Cephei are other famous examples of red supergiants. Most red supergiant stars explode as supernovae, but some of the brightest become Wolf-Rayet stars before exploding.
What is another name for supergiant stars?
Astronomy. an exceptionally luminous star whose diameter is more than 100 times that of the sun, as Betelgeuse or Antares. Also called supergiant.
What is the largest red supergiant?
The four largest known red supergiants in the Galaxy are Mu Cephei, KW Sagitarii, V354 Cephei, and KY Cygni, which all have radii about 1500 times that of the sun (about 7 astronomical units, or 7 times as far as the Earth is from the sun).
What color is a red supergiant?
Red supergiants look red because of their low surface temperatures. They range from about 3,500 – 4,500 Kelvin. According to Wien’s law, the color at which a star radiates most strongly is directly related to its surface temperature.
What is a red giant simple definition?
: a star that has low surface temperature and a diameter that is large relative to the sun.
What is a red supergiant simple definition?
Red supergiants are supergiant stars of spectral type K-M and a luminosity class of I. They are the largest stars in the universe in terms of physical size, although they are not the most massive.
Which star is the hottest supergiant?
Blue supergiants are the hottest stars in the universe, having temperatures of around 10,000 K to 50,000 K or more. Blue supergiants are also quite bright, being between 10,000 to 1 million times brighter than our Sun.
What is the force that makes a red supergiant collapse?
The Death of a Red Supergiant Star When that happens, gravity wins. At that point, the core is primarily iron (which takes more energy to fuse than the star has) and the core can no longer sustain outward radiation pressure, and it begins to collapse.
What is a red supergiant?
red supergiant. An extremely large red giant star with a minimum of 15 solar masses. The best known red supergiant is Betelgeuse, with a luminosity about 10,000 times that of the Sun. When a supergiant collapses into a supernova, it may result in either a neutron star or a black hole.
Are red super giant stars luminous?
Red supergiants (RSGs) are stars with a supergiant luminosity class (Yerkes class I) of spectral type K or M. They are the largest stars in the universe in terms of volume, although they are not the most massive or luminous. Betelgeuse and Antares are the brightest and best known red supergiants (RSGs), indeed the only first magnitude red supergiant stars
Is the Sun a red supergiant?
People always want to know if the Sun will become a red supergiant. For stars about the size of the Sun (or smaller), the answer is no. They do go through a red giant phase, though, and it looks pretty familiar. When they begin to run out of hydrogen fuel their cores begin to collapse.
What is a red giant supernova?
Both supernovas and red giants are names for a stage in a star’s life – the stage when a star is dying. Very large stars (8-10x the size of the Sun) will explode into a supernova when they die. The explosion is so large that the light from the star will outshine all other stars in the galaxy.