Compared to a star's entire history, the visual appearance of a supernova is very brief, perhaps spanning several months, so that the chances of observing one with the naked eye is roughly once in a lifetime. In what year did the star actually explode?
Crab Nebula, (catalog numbers NGC 1952 and M1), probably the most intensely studied bright nebula, in the constellation Taurus, about 6,500 light-years from Earth. Find out more about how we use your information in our Privacy Policy and Cookie Policy. 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. In the so-called Type Ia supernovae, gases falling onto a 'dead' white dwarf raise its mass until it nears a critical level, the Chandrasekhar limit, resulting in a runaway nuclear fusion explosion that obliterates the star; in Type Ib/c and Type II supernovae, the progenitor star is a massive star whose core runs out of fuel to power its nuclear fusionreactions an… This large mosaic of the Crab Nebula, also known as M1, was assembled from 24 individual exposures captured by Hubble over three months.
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Explain your answer. The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova. The highlighted passages refer to the Chinese observation of SN 1054.
You can change your choices at any time by visiting Your Privacy Controls. It was observed as a supernovae in AD 1054. The distance to the Crab Nebula is about 2000 parsecs.
Roughly 10 light-years in diameter, it is assumed to be the remnant of a supernova (violently exploding star) observed by Chinese and other astronomers first on July 4, 1054.
We and our partners will store and/or access information on your device through the use of cookies and similar technologies, to display personalised ads and content, for ad and content measurement, audience insights and product development. Information about your device and internet connection, including your IP address, Browsing and search activity while using Verizon Media websites and apps. To enable Verizon Media and our partners to process your personal data select 'I agree', or select 'Manage settings' for more information and to manage your choices. The star that exploded as a supernova is referred to as the supernova's progenitor star. Two types of stars explode as supernovae: white dwarfs and massive stars.
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