How far is the black hole from earth
Pro Research Analysisby 
Searched over 200M research papers
Distance of Black Holes from Earth
GW150914 Black Hole Merger Distance
The first direct detection of gravitational waves, known as GW150914, was made by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) on September 14, 2015. This groundbreaking event was caused by the merger of two black holes, each with a mass of approximately 35 times that of the Sun. The black holes were initially orbiting each other at a distance of about 350 kilometers before they merged into a single black hole.
The analysis of the GW150914 signal, using both Newtonian physics and general relativity, allowed scientists to estimate the distance of this black hole merger from Earth. The rough estimate places the GW150914 event at a distance of approximately 1.3 billion light-years from our planet. This significant distance underscores the immense scale of the universe and the power of gravitational wave astronomy in detecting such distant cosmic events.
Triple Supermassive Black Hole System Distance
In another study, a triple supermassive black hole system was observed at a redshift of z = 0.39, which translates to a considerable distance from Earth. This system includes a close-pair binary with a separation of about 140 parsecs, and it is significantly more distant than any other known binary system with a comparable orbital separation. The discovery of this system highlights the potential for finding more such tight pairs, which are crucial for low-frequency gravitational wave experiments.
Conclusion
The GW150914 black hole merger event is estimated to be about 1.3 billion light-years away from Earth, showcasing the vast distances over which gravitational waves can be detected. Additionally, the discovery of a triple supermassive black hole system at a redshift of 0.39 further emphasizes the distant nature of these cosmic phenomena. These findings are pivotal in advancing our understanding of the universe and the role of black holes within it.
Sources and full results
Most relevant research papers on this topic