3.6 NGC 1904/M 79
One source is detected in the HRI observation of NGC 1904, well outside the
half-mass radius (Fig. 1). I consider it likely that the source is
associated with the cluster (see Sect. 4.2). The source was already
detected, with positional accuracy of 60", by Hertz & Grindlay (1983) with
the Einstein satellite.