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Cygnus X-1 star

Cygnus X-1 star

R680/0005

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Credit

ROYAL GREENWICH OBSERVATORY / SCIENCE PHOTO LIBRARY ROYAL GREENWICH OBSERVATORY / SCIENCE PHOTO LIBRARY

Caption

Cygnus X-1 star. Negative optical image of the star (arrowed) associated with the X-ray source Cygnus X-1, thought to contain a black hole. Black holes are areas of space where the gravitational field is so strong that light cannot escape. It is thought Cygnus X-1 contains a black hole in mutual orbit with a larger companion star. This system emits X-rays as gas pulled from the star is accelerated and heated as it is sucked into the hole. Cygnus X-1 lies around 82,000 light years from Earth in the constellation Cygnus.

Release details

Model release not required. Property release not required.

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