Double Quasar (Q0957+561A/B)
 |
Double Quasar. Image credit: Jay
McNeil |
The first confirmed case of a gravitational
lens, an effect long predicted by the general
theory of relativity. It consists of two images, 5.7" apart, of the
same quasar, and results from the gravitational
effect of an intervening cluster of galaxies that lies about 3.5 billion
light-years away. The Double Quasar was discovered in 1979 and lies in the
constellation Ursa Major at R.A. 10h 1.3m, Dec.
+55° 54'. Related category
GALAXIES
Also on this site: Encyclopedia
of Alternative Energy & Sustainable Living
Encyclopedia
of History
BACK TO TOP
|