Figure 5.jpg (IMAGE) SETI Institute Caption The photometric data shown in Figure 4 phase-folded on a linear period of P = 19:65802 days. The left panels shows the primary eclipse and the right panels show the secondary eclipse. The dierent data sets are vertically oset in the lower panels for clarity. The phase change of the secondary eclipse relative to the primary|indicative of the apsidal motion of the binary|is clearly seen in the right panels. Credit The Astronomical Journal Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.