Definitions for crab nebula
crab neb·u·la

Princeton's WordNetRate this definition:0.0 / 0 votes

1. Crab Nebulanoun

   a remnant of a supernova detected first in 1054 AD

WikipediaRate this definition:0.0 / 0 votes

1. Crab Nebula

   The Crab Nebula (catalogue designations M1, NGC 1952, Taurus A) is a supernova remnant and pulsar wind nebula in the constellation of Taurus. The common name comes from William Parsons, 3rd Earl of Rosse, who observed the object in 1842 using a 36-inch (91 cm) telescope and produced a drawing that looked somewhat like a crab. The nebula was discovered by English astronomer John Bevis in 1731, and it corresponds with a bright supernova recorded by Chinese astronomers in 1054. The nebula was the first astronomical object identified that corresponds with a historical supernova explosion.At an apparent magnitude of 8.4, comparable to that of Saturn's moon Titan, it is not visible to the naked eye but can be made out using binoculars under favourable conditions. The nebula lies in the Perseus Arm of the Milky Way galaxy, at a distance of about 2.0 kiloparsecs (6,500 ly) from Earth. It has a diameter of 3.4 parsecs (11 ly), corresponding to an apparent diameter of some 7 arcminutes, and is expanding at a rate of about 1,500 kilometres per second (930 mi/s), or 0.5% of the speed of light. At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 kilometres (17–19 mi) across with a spin rate of 30.2 times per second, which emits pulses of radiation from gamma rays to radio waves. At X-ray and gamma ray energies above 30 keV, the Crab Nebula is generally the brightest persistent gamma-ray source in the sky, with measured flux extending to above 10 TeV. The nebula's radiation allows detailed study of celestial bodies that occult it. In the 1950s and 1960s, the Sun's corona was mapped from observations of the Crab Nebula's radio waves passing through it, and in 2003, the thickness of the atmosphere of Saturn's moon Titan was measured as it blocked out X-rays from the nebula.

ChatGPTRate this definition:0.0 / 0 votes

1. crab nebula

   The Crab Nebula, also known as Messier 1, is a supernova remnant and pulsar wind nebula located in the constellation Taurus. It's the result of a star that exploded in a supernova event witnessed on Earth in the year 1054. This nebula is constantly expanding at a rate of about 1,500 kilometers per second. Its core contains a neutron star (pulsar) which emits pulses of radiation 30 times per second. Due to its shape, which somewhat resembles a crab, it was given the name "Crab Nebula".

WikidataRate this definition:0.0 / 0 votes

1. Crab Nebula

   The Crab Nebula is a supernova remnant and pulsar wind nebula in the constellation of Taurus. Corresponding to a bright supernova recorded by Chinese astronomers in 1054, the nebula was observed later by John Bevis in 1731. At an apparent magnitude of 8.4, comparable to that of the largest moon of Saturn, it is not visible to the naked eye but can be made out using binoculars under favourable conditions. At X-ray and gamma-ray energies above 30 keV, the Crab is generally the strongest persistent source in the sky, with measured flux extending to above 10 TeV. Located at a distance of about 6,500 light-years from Earth, the nebula has a diameter of 11 light years and expands at a rate of about 1,500 kilometers per second. It is part of the Perseus Arm of the Milky Way Galaxy. At the center of the nebula lies the Crab Pulsar, a neutron star 28–30 km across, which emits pulses of radiation from gamma rays to radio waves with a spin rate of 30.2 times per second. The nebula was the first astronomical object identified with a historical supernova explosion.

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1. • Supernova

How to pronounce crab nebula?

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Numerology

1. Chaldean Numerology

   The numerical value of crab nebula in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of crab nebula in Pythagorean Numerology is: 7

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=crab nebula
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Crab_Nebula
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=crab nebula