Search results
Results from the WOW.Com Content Network
The Cygnus Loop (radio source W78, or Sharpless 103) is a large supernova remnant (SNR) in the constellation Cygnus, an emission nebula measuring nearly 3° across. [1] Some arcs of the loop, known collectively as the Veil Nebula or Cirrus Nebula, emit in the visible electromagnetic range. [ 1 ]
The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus. [4]It constitutes the visible portions of the Cygnus Loop, [5] a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers.
This is a list of observed supernova remnants (SNRs) ... Cygnus Loop, including Veil Nebula: 20 h 51 m +30° 40′ 6,000−3,000 BCE: 7: 1,470? possible neutron star
Supernova remnant: Located in the Cygnus Loop: NGC 3576: 100 ly (31 pc) [62] Emission nebula: N41: 100 ly (31 pc) [63] Emission nebula: The following well-known nebulae are listed for the purpose of comparison. Orion Nebula: 20 ly (6.132 pc) [64] Diffuse Nebula: The closest major star formation region to Earth. [65] Crab Nebula: 11 ly (3.4 pc ...
Original – "The Cygnus Loop (radio source W78, or Sharpless 103) is a large supernova remnant (SNR) in the constellation Cygnus, an emission nebula measuring nearly 3° across. Some arcs of the loop, known collectively as the Veil Nebula or Cirrus Nebula, emit in visible light. Radio, infrared and X-ray images reveal the complete loop." Reason
N6946-BH1 is a disappearing supergiant star and failed supernova candidate formerly seen in the galaxy NGC 6946, on the northern border of the constellation of Cygnus.The star, either a red supergiant [1] or a yellow hypergiant, [3] was 25 times the mass of the Sun, and was 20 million light years distant from Earth.
Cygnus X-1 (abbreviated Cyg X-1) [11] is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. [12] [13] It was discovered in 1964 during a rocket flight and is one of the strongest X-ray sources detectable from Earth, producing a peak X-ray flux density of 2.3 × 10 −23 W/(m 2 ⋅Hz) (2.3 × 10 3 jansky).
An ultraviolet image of the Cygnus Loop, a large supernova remnant in the constellation Cygnus. Different parts of the loop emit electromagnetic radiation in different ranges, including visible light for the arcs known collectively as the Veil Nebula. The complete loop is only revealed through radio, infrared, and X-ray images.