Search results
Results From The WOW.Com Content Network
Cassiopeia A (Cas A) (listen ⓘ) is a supernova remnant (SNR) in the constellation Cassiopeia and the brightest extrasolar radio source in the sky at frequencies above 1 GHz. The supernova occurred approximately 11,000 light-years (3.4 kpc ) away within the Milky Way ; [ 2 ] [ 3 ] given the width of the Orion Arm , it lies in the next-nearest ...
This background image of the region around supernova remnant Cassiopeia A was released by NASA’s Spitzer Space Telescope in 2008. By taking multiple images of this region over three years with ...
Astronomers spied previously unseen details in the supernova remnant Cassiopeia A using the Webb telescope's Near-Infrared Camera (left) and Mid-Infrared Instrument (right).
This is a list of observed supernova remnants ... Cassiopeia A: 23 h 23 m 24 s +58° 48′ 54″ circa 1667: 6: 10,000: IIb [8] neutron star CXOU J232327.8+584842 SN ...
First observed between August 4 and August 6, 1181, Chinese and Japanese astronomers recorded the supernova now known as SN 1181 in eight separate texts. One of only five supernovae in the Milky Way confidently identified in pre-telescopic records, [1] it appeared in the constellation Cassiopeia and was visible and motionless against the fixed stars for 185 days.
A James Webb Space Telescope (JWST) image of the Cassiopeia A (Cas A) supernova remnant will be included in the White House’s first-ever Advent calendar. In a Sunday news release, NASA said that ...
A supernova remnant (SNR) is the structure resulting from the explosion of a star in a supernova. The supernova remnant is bounded by an expanding shock wave , and consists of ejected material expanding from the explosion, and the interstellar material it sweeps up and shocks along the way.
Astronomers studying the site of a supernova seen 843 years ago have captured an image of the strange filaments left behind by the stellar explosion.