Cygnus X-1

Cygnus X-1

Stellar Classification:

• stellar-mass black hole
• galactic X-Ray source

Composition:

• Helium
• Plasma

Spectrum Analysis of Helium:

Location in Space:

• 19^h45^m41.90^s, +37°47′34.9″
• 6,070 light years from Earth

Sources:

https://en.wikipedia.org/wiki/Cygnus_X-1#Star_system

http://hubblesite.org/explore_astronomy/black_holes/modules.html

http://www.nasa.gov/mission_pages/chandra/multimedia/cygnusx1.html