X-Ray Observations of the Virgo Cluster, NGC 5128, and 3c 273 from the UHURU Satellite

We have observed X-ray emission from the extragalactic objects M87, NGC 5128 (Cen A), and 3C 273. These have all been previously reported as X-ray sources. However, the emission from the direction of M87 extends over a region of more than 1 and may represent the emission from two sources, one being M87 and the other being M84.