Contact: Janice Schultz
nrlpao@nrl.navy.mil
202-767-2541
Naval Research Laboratory

Long Wavelength Array, Figure 2

Caption: Commissioning observations made this past fall by the LWDA show its all sky imaging capability. In this frame from the LWDA first light movie, emission from the bright sources Sagittarius A at the center of our galaxy, Cassiopeia A, and the black-hole powered radio galaxy, Cygnus A, are all clearly visible. Cassiopeia A, the strongest discrete radio source visible in the sky, is a remnant of a massive star that exploded in a supernova over 300 years ago.

Credit: Tracy Clarke, Interferometrics Inc.

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