Search results
Results from the WOW.Com Content Network
The Crab Nebula is a pulsar wind nebula associated with the 1054 supernova.It is located about 6,500 light-years from the Earth. [1]A near-Earth supernova is an explosion resulting from the death of a star that occurs close enough to the Earth (less than roughly 10 to 300 parsecs [33 to 978 light-years] away [2]) to have noticeable effects on Earth's biosphere.
A near-Earth supernova is a supernova close enough to the Earth to have noticeable effects on its biosphere. Depending upon the type and energy of the supernova, it could be as far as 3,000 light-years away. In 1996 it was theorised that traces of past supernovae might be detectable on Earth in the form of metal isotope signatures in rock strata.
SN 1054 remnant (Crab Nebula)A supernova is an event in which a star destroys itself in an explosion which can briefly become as luminous as an entire galaxy.This list of supernovae of historical significance includes events that were observed prior to the development of photography, and individual events that have been the subject of a scientific paper that contributed to supernova theory.
List of most distant supernovae contains selected examples of supernovae so far discovered. Most distant supernovae ... Type Ia supernova: Supernova Primo: z=1.55 [8 ...
Supernova 1987A is the bright star at the centre of the image, near the Tarantula Nebula. SN 1987A was a type II supernova in the Large Magellanic Cloud, a dwarf satellite galaxy of the Milky Way. It occurred approximately 51.4 kiloparsecs (168,000 light-years) from Earth and was the closest observed supernova since Kepler's Supernova in 1604.
The Earth's orbit is known ... Expansion parallaxes in particular can give fundamental distance estimates for objects that are very far, because supernova ejecta have ...
The known history of supernova observation ... was only 7,100 light-years from the Earth. [14] Supernova SN 1054 was ... its parallax—so it must lie far ...
This was the first observation of the light echo of a supernova whose explosion had not been directly observed which opens up the possibility of studying and reconstructing past astronomical events. [1] [6] In 2011 a study used spectra from different positions of the light echo to confirm that the Cassiopeia A supernova was asymmetric. [21]