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- NGC5128 is a peculiar and controversial
- galaxy. Until recently, there has been
- much confusion as to whether it was in
- fact a galaxy at all or diffuse nebula.
- With a luminosity equal to 20 Billion
- suns, this is one of the brightest
- galaxies known. It has a diameter of about
- 100,000 light years and an absolute
- magnitude of -21! This is a strong
- source of radio emissions, 1000 times
- more powerful than the Milky Way.