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Cygnus X-1
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Cygnus X-1 is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. It was discovered in 1964 during a rocket flight and is one of the s
The companion star of the black hole Cygnus X-1 is the brighter of the two stars in the middle of the photo. A bowshock is created by the jet of energ
The companion star of the black hole Cygnus X-1 is the brighter of the two stars in the middle of the photo. A bowshock is created by the jet of energetic particles from the black hole as they collide with the interstellar medium. It can be seen as the arc near top of the photo.
X-ray image of Cygnus X-1 taken by a balloon-borne telescope, the High-Energy Replicated Optics (HERO) project
X-ray image of Cygnus X-1 taken by a balloon-borne telescope, the High-Energy Replicated Optics (HERO) project
Chandra X-ray Observatory image of Cygnus X-1
Chandra X-ray Observatory image of Cygnus X-1
A Chandra X-ray spectrum of Cygnus X-1 showing a characteristic peak near 6.4 keV due to ionized iron in the accretion disk, but the peak is gravitati
A Chandra X-ray spectrum of Cygnus X-1 showing a characteristic peak near 6.4 keV due to ionized iron in the accretion disk, but the peak is gravitationally red-shifted, broadened by the Doppler effect, and skewed toward lower energies
Cygnus (constellation)
Videos
Cygnus is a northern constellation on the plane of the Milky Way, deriving its name from the Latinized Greek word for "swan". Cygnus is one of the most recognizable constellations of the northern summ
Cygnus X-1
…Cygnus X-1 (abbreviated Cyg X-1) is a galactic X-ray source in the constellation Cygnus and was the first such source widely accepted to be a black hole. It was discovered in 1964 during a rocket flight and is one of the strongest X-ray…
Cygnus as depicted in Urania's Mirror, a set of constellation cards published in London c.1825. Surrounding it are Lacerta, Vulpecula and Lyra.
Cygnus as depicted in Urania's Mirror, a set of constellation cards published in London c.1825. Surrounding it are Lacerta, Vulpecula and Lyra.
Cygnus is superimposed as main stars constellation over a photo of the according section of the night sky
Cygnus is superimposed as main stars constellation over a photo of the according section of the night sky
On the left side of this X-ray image are the bright North America Nebula (left bright part) with Sadr region (right bright part) in the Cygnus X regio
On the left side of this X-ray image are the bright North America Nebula (left bright part) with Sadr region (right bright part) in the Cygnus X region, visually interrupted by the Cygnus rift .
The constellation Cygnus as it can be seen by the naked eye, with the Northern Cross in the middle.
The constellation Cygnus as it can be seen by the naked eye, with the Northern Cross in the middle.