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How could the supernova have been seen in 1054?

To the unaided eye, the appearance of the supernova of AD 1054 would be merely that of an unusually bright star. Chinese astronomers noted that “. . ~ it had pointed rays on all sides . . . “; this was presumably due to distortion within the eye of light from a bright point source.

How would you describe a supernova?

A supernova is a large explosion that takes place at the end of a star’s life cycle. It is the largest explosion that takes place in space.

How would you describe the Crab Nebula remnants of supernova 1054?

The Crab Nebula, about 6,500 light-years from Earth, is the scattered fragments of a supernova, or exploding star, observed by earthly skywatchers in the year 1054. The Crab Nebula is a cloud of gas and debris rushing outward from a great stellar explosion seen a thousand years ago by earthly skywatchers.

What was unique about the 1054 AD supernova?

The remnant of SN 1054, which consists of debris ejected during the explosion, is known as the Crab Nebula. The nebula and the pulsar that it contains are some of the most studied astronomical objects outside the Solar System. It is one of the few Galactic supernovae where the date of the explosion is well known.

What would happen if mass is added to a 1.4 solar mass white dwarf?

What would happen if mass is added to a 1.4 solar mass white dwarf? The star would eventually become a black hole. The star would erupt as a type I supernova.

What is one star in our galaxy that is capable of becoming a supernova?

When a massive star runs out of material in its core, the star will collapse under its own gravity and turn into a supernova. Researchers have estimated that this will likely happen to Betelgeuse within the next 100,000 years, which is relatively soon in astronomical terms.

When was the last supernova in our galaxy?

Oct

What would happen if Alpha Centauri went supernova?

But everything actually in Alpha Centauri would fair far worse than our own solar system. At such a close proximity to the supernova, the effects – including the emission of almost immeasurably, super-heated atoms – would hit nearby planets, moons and asteroids in a matter of minutes rather than years.

Does a supernova implode or explode?

A supernova (/ˌsuːpərˈnoʊvə/ plural: supernovae /ˌsuːpərˈnoʊviː/ or supernovas, abbreviations: SN and SNe) is a powerful and luminous stellar explosion. This transient astronomical event occurs during the last evolutionary stages of a massive star or when a white dwarf is triggered into runaway nuclear fusion.