Is it true that when a nova destroys the star and leave behind a white dwarf?
Yes, when a star undergoes a nova, it expels material into space, which can eventually form a white dwarf. A white dwarf is the remnant core of a star that has exhausted its nuclear fuel and collapsed under gravity. Novae are different from supernovae, which are more energetic and can leave behind other remnants like neutron stars or black holes.
It's highly unlikely. Antares is not likely to go supernova for at least a million years. However, because of it's distance from us - 600 light years, it may have already gone supernova and we just haven't seen it yet.
What two factors determine how bright a star looks like from earth?
The two factors that determine how bright a star appears from Earth are its intrinsic brightness (or luminosity) and its distance from Earth. Intrinsic brightness refers to the amount of light a star emits, while distance affects how much of that light reaches us. Closer, more luminous stars appear brighter in the sky.
How do you reset your supernova dlx pandigital?
1. Power off the Nova by holding the power button for two seconds until you see "Power Off" on the screen. Choose the "power off" option and then press the "Ok" button. Let the device completely power down before you continue with the next steps. At this time also remove any SD card you might have inserted into the device.
2. Press and hold the volume + button. While still holding this button, press down on the power button. You will then see a screen that says Pandigital. This is the boot screen.
3. After the device boots up you will go to a black screen with triangle, press volume + button and the power button. What should come up is a screen with blue text, this is the system recovery screen. While on the system recovery screen, press the volume - button until "wipe data and cache" is highlighted. Press the power button to select this option
4. Press the volume - button until "Yes -- delete all user data" is highlighted. Press the power button to select this option.
5. The device will reformat and return to the system recovery screen.
6. "Reboot system now" should be highlighted by default. Press the power button to select this option. (this is directly from pandigital customer service)
Is a red dwarf star made from a supernova?
No, red dwarf stars are not made from supernovae. Red dwarf stars are low mass stars that form from the gravitational collapse of gas and dust in interstellar clouds. Supernovae, on the other hand, occur when massive stars reach the end of their life cycle and explode.
How long would it take gamma rays from an exploding star to reach earth?
Gamma rays are a form of electromagnetic radiation, and thus they travel at the speed of light.
If a star is one light year away, it will reach Earth in one year.
How much brighter is rigel than the sun?
Rigel is approximately 120,000 times brighter than the Sun. This high luminosity is due to Rigel's much larger size and higher temperature compared to the Sun.
What is a huge group of stars that form a spreading spiral?
A galaxy is a huge group of stars that form a spreading spiral. Our own Milky Way galaxy is an example of a spiral galaxy.
What can a white dwarf do to it's companion star?
Depending on the distance between the binary pair, it is possible for the white dwarf to draw gas from it's companion causing the star to reach the Chandrasekhar limit causing the white dwarf to explode as a nova or a type La supernova.
A red dwarf star has a surface temperature that ranges from about 2,500 to 4,000 degrees Celsius (4,532 to 7,232 degrees Fahrenheit). This is cooler compared to other types of stars like our sun, which has a surface temperature of around 5,500 degrees Celsius (9,932 degrees Fahrenheit).
What type of stars end their life as a supernova?
Massive stars that are at least eight times more massive than the Sun end their life as a supernova. During the explosion, these stars release a tremendous amount of energy and can briefly outshine an entire galaxy.
How do you determine old craters from new craters?
Old craters typically have more erosion, with smoother edges and a shallower depth compared to new craters. New craters have sharp, well-defined edges with steep walls and a more prominent central peak. Additionally, the presence or absence of overlapping craters can also help distinguish between old and new craters.
The description matches that of a neutron star, which is formed after a supernova explosion of a massive star. Neutron stars are incredibly dense, with matter packed tightly together. Due to their high gravitational pull, a small amount of neutron star material would have an extremely high mass.
What part of the sun gives off heat and light?
The core of the Sun is the part responsible for giving off heat and light through nuclear fusion reactions. This is where hydrogen atoms are converted into helium, releasing large amounts of energy in the form of heat and light.
How much brighter is a supernova than a nova?
A supernova can be billions of times brighter than a nova. Novas occur on the surfaces of white dwarf stars and release energy comparable to millions of hydrogen bombs, while supernovae represent the explosion of an entire star and can briefly outshine entire galaxies.
What is a name for an exploding star?
when a star is at the end of its life(depending on mass) a star will sponaniously explode into a supernova. or it will collapse into a black hole.
What is the closest star to Betelgeuse?
The closest star to Betelgeuse is approximately 643 light-years away. This star is located in the star cluster known as the Orion Nebula, where it is part of a group of young, hot stars.
Why is a star said to be dead when it is a white dwarf?
after the star implodes an explodes it becomes a white dwarf or a black hole
Because it has used up all of it's fuel and has nothing left to convert into energy (unless it can accrete additional fuel from a companion star).
What object is brighter than the sun?
Brightness is related to luminousity and distance. On Earth, the brightest thing would be a nuclear explosion. In space, the brightest thing would be a supernova, but it all depends on the distance from it.
The universe is a vast and complex system that consists of stars, planets, galaxies, dark matter, and dark energy. It is organized into a cosmic web structure, with galaxies clustered along filaments separated by voids. At the largest scales, the universe appears homogeneous and isotropic, following the principles of cosmological models such as the Big Bang theory.
Generally "nova" means new.
nova" class='external' title="nova
The sudden brightening of a previously inconspicuous" class='external' title="inconspicuousstar. The name, short for nova Stella (new star), formerly included objects now classified as supernovae and as other kinds of cataclysmic variables. Classical novae now include only those events where the energy source is hydrogen fusion (burning) on the surface of a white dwarf in a close binary system and the white dwarf is not destroyed in the process.
A handful of novae are discovered each year in the Milky Way Galaxy, and the total rate is probably 20-50 per year. A comparable number are found in other, nearby galaxies. The system consists of a normal, hydrogen-burning star in a close orbit (periods of a few days or less) around a white dwarf or degenerate" class='external' title="degeneratestar. A stream of gas flows from the normal star into a disk around the white dwarf and then accretes onto its surface. Hydrogen gradually builds up there until it is hot and dense enough for nuclear burning, normally with carbon, oxygen, neon, or magnesium" class='external' title="magnesiumfrom the white dwarf itself acting as a catalyst" class='external' title="catalyst. Any nuclear fuel ignited under degenerate conditions explodes, because energy released does not cause the gas to expand, so temperature rises rapidly. See also binary star" class='external' title="binarystar; white dwarf star 1" class='external' title="whitedwarf star 1.
Novae brighten in a few days and fade in months to years. The peak brightness is more than 100 times the solar luminosity" class='external' title="luminosity, and the total energy release more than 1045 erg" class='external' title="erg(1038 joule)" class='external' title="joule). Novae recur every 104-105 years. See also cataclysmic variable" class='external' title="cataclysmicvariable; light curve" class='external' title="lightcurve; variable star" class='external' title="variablestar.
What is the heaviest element that can be made by normal processes inside a star?
Iron is the heaviest element that can be produced by normal processes inside a star through nuclear fusion. Elements heavier than iron are typically formed in supernova explosions or through other stellar processes.
Novae (singular nova, Latin for new) are exploding stars.
A "nova" is technically a fusion explosion on the surface of a white dwarf star.
A "supernova" is the end of the cycle of fusion in large stars. The resulting loss of pressure within the star allows the outer layers to collapse, and they are then thrown outward with incredible force.
(for details, see the related questions and link)
How much energy does a nova release?
Not to be confused with a supernova - [See related]
In a few hundred days a nova pumps out as much energy as the sun does for more than a million years.
The Little Boy atomic bomb dropped on Hiroshima exploded with an energy of about 15 kilotons of TNT (~6 × 1013 joules)
During the Cold War, the United States developed hydrogen bombs with a maximum theoretical yield of 25 megatons (~1015 Joules)
A nova releases as much energy as the Sun emits in a million years or 1034 joules
which is about ten quintillion megatons of TNT (~1018 joules)
So you'd need about 17,000 of the most powerful hydrogen bombs to equal a nova.
What 2 things can happen to a star after a supernova?
It can either become a neutron star or a black hole. If the star is between 8 and 15 solar masses, it will become an incredibly dense neutron star. If it is more than 15 solar masses, it will collapse and become an even denser black hole.