PREFACE.

1. INTRODUCTION. Discovery of Our Planetary System. Efforts to Detect Other Planetary Systems. Project Orion.

2. TOWARD DESIGN CONCEPTS. Remarks Concerning the Term "Planet". Detection Problem-Astrophysical Aspects. Detection Problem Terrestrial Aspects. Detection Problem Hardware Aspects. Summary.

3. DIRECT DETECTION SYSTEMS. Direct Detection at Visual Wavelengths. Direct Detection at Infrared Wavelengths. Summary.

4. ORION IMAGING STELLAR INTERFEROMETER: A DESIGN CONCEPT. Light-Collecting System: Alignment and Guidance. Signal Detection, Processing. and Tracking. ISI Building. Site Selection and Development. Options and Additional Considerations. Summary.

5. TOWARD A NEW FRONTIER. Conclusions of the Orion Study. Recommendations for Future Activity. Appendix A. Variability of Optical Paths Through the Atmosphere Due to Thermal Turbulence. Appendix B. Analysis of Imaging Stellar Interferometer Data to Determine Relative Star Positions. [vi] Appendix C. Sonine Apodization Using Masks. Appendix D. Direct Imaging of Extrasolar Planets With a Space Telescope.
REFERENCES.
LIST OF PARTICIPANTS.
EDITOR's NOTE.