Cygnus X-1 - Wikipedia
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) ...
Cygnus X-1 (song series) - Wikipedia
"Cygnus X-1" is a two-part song series by Canadian progressive rock band Rush. The first part, "Book I: The Voyage", is the last song on the 1977 album A Farewell to Kings, and the second part, "Book II: Hemispheres", is the first song on the following album, 1978's Hemispheres.
Cygnus X-1: The black hole that started it all - Astronomy Magazine
Mar 3, 2021 · Since its discovery in 1964, Cygnus X-1 has been the focus of numerous studies. But, as it turns out, the world’s first black hole isn’t done surprising physicists just yet. A recent study,...
Cygnus X-1 | black hole, neutron star, X-ray source | Britannica
Cygnus X-1, binary star system that is a strong source of X-rays and that provided the first major evidence for the existence of black holes. Cygnus X-1 is located about 7,000 light-years from Earth in the constellation Cygnus.
First black hole ever found is more massive than previously thought ...
Feb 18, 2021 · New observations of the black hole–star pair called Cygnus X-1 indicate that the black hole weighs about 21 times as much as the sun — nearly 1.5 times heavier than past estimates. The...
More Information about Cygnus X-1 - Imagine the Universe!
Sep 23, 2020 · Cygnus X-1 is one of the brightest X-ray sources seen from Earth. It was one of eight sources discovered during a sounding rocket flight in 1964. The rocket carried instruments to detect celestial sources of X-rays.
NASA’s IXPE Reveals Shape, Orientation of Hot Matter Around …
Nov 3, 2022 · Cygnus X-1, discovered in 1964, was the first cosmic object ever identified as containing a black hole. Now, NASA telescopes have teamed up to reveal new details about the configuration of hot matter surrounding this famous black hole.
Cygus X-1 - University of Illinois Urbana-Champaign
Cygnus X-1 is the classic black hole binary. The visually bright component, a highly luminious class O supergiant called HDE 226868, is centered in the picture up and to the left of the picture's brightest star, Eta Cygni.
Cygnus X-1 - Constellation Guide
Cygnus X-1 is a galactic X-ray source located in the northern constellation Cygnus. The X-ray source is believed to be a stellar mass black hole, one created from the collapse of a massive star about 5 to 6 million years ago.
Chandra :: Photo Album :: Cygnus X-1 :: November 17, 2011
Cygnus X-1 is a black hole about 15 times the mass of the Sun in orbit with a massive blue companion star. Astronomers used several telescopes including Chandra to study Cygnus X-1. The combined data have revealed the spin, mass, and distance of this black hole more precisely than ever before.