Scientific Uses of the Large Space Telescope

absorption lines abundance airglow analysis angular resolution aperture apparent magnitude astronomy Astrophys atmosphere atoms binaries brighter brightness chromospheric clouds comet cosmological dark count density of matter detected determined diameter diffraction-limited disk distance earth earth's surface ejection emission exposure faint fainter stars focal ratio galactic corona galactic plane ground-based telescopes H II regions Hale telescope high-resolution hydrogen ideal detector imagery important infrared instruments intergalactic interstellar gas ionized Large Space Telescope light limiting magnitude luminosity magnitude 28 major planets masses measurements nebulae nuclei number of photons objects observations Observatory obtained optical orbit Palomar Observatories parallax photographic photometric accuracy photomultiplier photons planetary problems quasars radiation radius red shift relatively Sandage scientific sec of arc signal solar system sources Space Science Board Space Telescope LST spectra spectroscopic star of magnitude stellar evolution stellar image structure tele temperature thermal ultraviolet universe velocity Wavelength Range wavelengths yield