The possibility of achieving the diffraction resolution limit in observations of astronomical objects through a nonisoplanatic atmosphere
The possibility of calibrating solar photometers in conditions of continuously varying atmospheric transparency
The Potential for Atmospheric Path Length Compensation in Stellar Interferometry
The Potential of High Contrast Coronagraphy
The potential of rotating-baseline nulling interferometers operating within large single-telescope apertures
The practical application of optical fibres and microlenses to multi-object spectroscopy
The precession of vortex-beams in a rotating uniaxial crystal
The prediction of on site telescope performance.
The Primordial Inflation Explorer (PIXIE)
The Primordial Inflation Explorer (PIXIE) Mission
The Primordial Inflation Polarization Explorer (PIPER): optical design
The problem of the transfer function of the atmosphere
The problems concerning the integration of very thin mirror shells
The Professional World of Amateur Astronomy
The Progress Report of SUBARU Telescope Project
The project of high spatial resolution near infrared imaging system at Beijing Observatory
The Prolate Apodized Solar Coronagraph
The Propagation and Broadening of Pulses in Weakly Irregular Media
The propagation of a polarized Gaussian beam in a smoothly inhomogeneous isotropic medium
The Proper Motion of the Arches Cluster: Cluster Membership and Understanding the Origin of Massive Young Clusters near the Galactic Center