Cool Stars 14 - Submitted Abstract # 331 This version created on 05 October 2006 Alpha TrA Junior Thomas Ayres, University of Colorado (CASA) Alexander Brown, University of Colorado (CASA) Graham Harper, University of Colorado (CASA) For a long time it has been proposed that the anomalous properties of the so-called "hybrid chromosphere" star Alpha Trianguli Australis (K2 II)--particularly its elevated coronal X-ray emission and frequent flaring--could best be explained by an unseen hyperactive G dwarf companion (which would share the youthful evolutionary age [about 50 Myr] of the massive primary). Recently, a series of Hubble WFPC2 exposures finally have recovered the "young sun" (hence "Junior") of the red supergiant. The solar blind F160BW filter was exploited to accentuate the relative brightness of a warm companion, which otherwise would be more than 8 magnitudes fainter in the V band. The companion is about 0.4 arcsec nearly due S of the primary, at a position angle of 162 degrees (measured E from N). The secondary is about 1% the intensity of the primary in the UV filter, as would be predicted for a G0 spectrum. Although a G dwarf of that age could completely dominate the soft X-ray emission, it would have little influence on the FUV spectrum. ----------------------------------