Astrophotography, Part 3
25 entries in the Astrophotography, Part 3 compendium.
SolarigraphyLong-exposure pinhole photography capturing the sun's path on unprocessed paper.Space selfieA self-portrait taken in outer space by astronauts or machines.Speckle imagingHigh-resolution technique using short exposures to freeze atmospheric turbulence.Speckle interferometryFourier analysis of speckle patterns reveals high-resolution structure.400 Years of the TelescopeDocumentary chronicling the telescope from Galileo to dark energy.Altazimuth mountA simple two-axis mount for rotating instruments about vertical and horizontal axes.AstrographA telescope designed exclusively for astrophotography and sky surveys.AstroscanA durable, wide-field Newtonian reflector for novice astronomers.Atmosphere and Telescope SimulatorLaboratory tool simulating telescope and atmospheric conditions for education and testing.Automated Planet FinderFully robotic 2.4-meter telescope searching for exoplanets via radial velocity.Bahtinov maskA focusing mask producing three angled diffraction spikes for precise alignment.Birmingham Solar Oscillations NetworkLongest running helioseismology network monitoring solar oscillations since 1976.Chabot Space and Science CenterA public observatory and science center since 1883.Comet seekerA short-focal-length telescope for comet hunting.Compton telescopeA gamma-ray detector using Compton scattering to locate sources.CophasingPrecise control of segmented mirrors to achieve full telescope resolution.Dark Energy Spectroscopic InstrumentA spectrographic instrument probing dark energy and cosmic expansion.Diffraction-limited systemThe maximum resolution achievable by an ideal optical system due to diffraction.Dorpat Great RefractorFirst modern achromatic great refractor with German equatorial mount.Equatorial mountA mount that tracks celestial objects by aligning with Earth's rotation.EyepieceEyepieces magnify the image formed by an objective lens or mirror.Foucault knife-edge testSimple optical test for measuring concave mirror shapes.Galaxy H-Alpha Fabry-Perot SystemAn optical Fabry-Perot interferometer mapping ionized hydrogen velocity fields.Hale TelescopeA 200-inch reflecting telescope at Palomar Observatory, completed in 1949.HATNet ProjectA network of automated telescopes detecting transiting exoplanets.
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