Bootes void


Bootes void

The Bootes void (also known as the Great Nothing) is a massive, roughly spherical area of space that contains extremely few galaxies. It gets its name from its location near the constellation Bootes. Its centre is around 14h 50m right ascension and 46° declination.


What is bootes void


The Bootes void is one of the biggest known voids in the Universe, with a diameter of almost 330 million light-years (around 0.27 percent of the diameter of the visible Universe) and a volume of nearly 236,000 Mpc3. It was discovered as part of a survey of galactic redshifts by Robert Kirshner et al. (1981). The Bootes void's centre is around 700 million light-years away from Earth.

Other astronomers quickly found that there are a few galaxies in the emptiness. The discovery of eight galaxies in the vacuum by J. Moody, Robert P. Kirshner, G. MacAlpine, and S. Gregory was published in 1987. In 1988, M. Strauss and John Huchra announced the finding of three new galaxies, and fifteen galaxies were discovered in 1989 by Greg Aldering, G. Bothun, Robert P. Kirshner, and Ron Marzke. By 1997, it was recognised that the Bootes void had 60 galaxies in a region that would normally have around 2000.


Bootes void size | How big is the bootes void


The Bootes void is one of the biggest known voids in the Universe, with a diameter of almost 330 million light-years (around 0.27 percent of the diameter of the visible Universe) and a volume of nearly 236,000 Mpc3.



Posted By InnoTechzz