Here is a composite image of the entire sky in radio frequencies. It shows data from Parkes, Jodrell Bank and Effelsburg (ie the “Haslam map“, technically for you astro nerds the Global Sky Model by Angelica de Oliviera Costa which includes some data from other observations) as well as point sources from the VLA in the north and Molonglo in the south. This version is suitable for a 10x20inch poster. Those stars aren’t stars! Each is a radio galaxy undergoing a cataclysmic event emanating from a central million solar mass black hole. The nearest, double-lobed Centaurus A, features prominently center right. The radio Milky Way, a vast assemblage of supernova remnants, stretches across the center.

The sky in the FM radio radio band. A composite from many different telescopes around the world.

The sky in the FM radio radio band. A composite from many different telescopes around the world

Check out this MWA image of the galactic plane from David Kaplan (UWM). The image of 150MHz radiation covers 80 degrees wide and has a resolution of about 5 arcminutes. At about 125million pixels its a bit large to digest, so I’ve uploaded it to Gigapan, where you can pan and zoom ala google maps. Most of the circular things are supernova remnants, the imprints of ancient supernova explosions impressed on the galaxies plasma and magnetic fields.

This is just a sneak preview of the imaging capability of this fully operational battle station.

Oct_07_galplane_121_gc_lowres

Low res thumbnail. Click image for full map at Gigapan.

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A tiny fraction of the full resolution image. Look at all the supernova remnants! Click image for full map at Gigapan.