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N-body problem -- Nabu-rimanni -- Nadir [?] -- Naiad [?] -- Naiad (moon)[?] [?] -- Naked singularity [?] -- Naos[?] [?] -- Napier, John -- NASA -- National Optical Astronomy Observatories[?] [?] -- National Optical Astronomy Observatory[?] [?] -- National Radio Astronomy Observatory[?] [?] -- Natural satellite -- NEAR Shoemaker [?] -- Near-Earth asteroid [?] -- Near-Earth object -- Nebula -- Nebular hypothesis[?] [?] -- Nectarian[?] [?] -- Nectarian System[?] [?] -- Nemesis (star) [?] -- Nemontemi[?] [?] -- Neptune (planet) -- Nereid (moon) -- von Neumann, John -- Neutrino -- Neutrino mass[?] [?] -- Neutrino oscillation [?] -- Neutron -- Neutron star -- Neutronium -- Nevanlinna, Rolf [?] -- New General Catalogue [?] -- Newcomb, Simon[?] [?] -- Newcomb's Tables of the Sun[?] [?] -- New moon -- Newton's laws of motion [?] -- Newtonian physics -- Newtonian telescope[?] [?] -- Newton, Isaac -- Next Generation Space Telescope[?] [?] -- NGC 1068[?] [?] -- NGC 2244[?] [?] -- NGC 2264 [?] -- NGC 3227[?] [?] -- NGC 3516[?] [?] -- NGC 4321 [?] -- NGC 4486 [?] -- NGC 4593[?] [?] -- NGC 5128[?] [?] -- NGC 6027[?] [?] -- NGC 6171 [?] -- NGC 6240 [?] -- NGC 6751[?] [?] -- NGC 7742 [?] -- NGST[?] [?] -- Nice Observatory [?] -- Nicholson, Seth Barnes [?] -- Niels Bohr Institute [?] -- Night -- Nilson, Peter [?] -- NOAO[?] [?] -- Node -- Node (astronomy)[?] [?] -- Non-Euclidean geometry [?] -- Non-standard cosmology [?] -- Norma (constellation) [?] -- North America Nebula[?] [?] -- North Pole -- North Star [?] -- Nova -- Novara da Ferrara, Domenico Maria [?] -- Novikov, Igor Dmitrievich [?] -- Novikov, Petr Sergeevich[?] [?] -- Nuclear decay[?] [?] -- Nuclear fusion -- Nucleocosmochronology [?] -- Nucleosynthesis [?] -- Nutation [?]
Oak Ridge Observatory[?] [?] -- Oberon (moon) [?] -- Oberth, Hermann Julius[?] [?] -- Obliquity of the ecliptic [?] -- Obruchev crater[?] [?] -- Observatory [?] -- Observatory of Paris[?] [?] -- Occultation[?] [?] -- Oceanus Procellarum [?] -- Octans [?] -- Odysseus crater[?] [?] -- OH maser[?] [?] -- Olbers' paradox -- Olbers, Heinrich Wilhelm Mathias [?] -- Olympus Mons [?] -- Omega Centauri[?] [?] -- Oort cloud [?] -- Oort, Jan[?] [?] -- Open cluster [?] -- Ophelia [?] -- Ophiuchus [?] -- Oppenheimer-Volkoff limit[?] [?] -- Opposition (astronomy) [?] -- Optical astronomy [?] -- Optical axis [?] -- Optical binary [?] -- Optical depth [?] -- Optical double [?] -- Optical spectrum -- Optics [?] -- Orbit [?] -- Orbital elements [?] -- Orbital period [?] -- Orbital plane [?] -- Orbital resonance [?] -- Orbital revolution [?] -- Orbital speed -- Orion [?] -- Orion Nebula [?] -- Orrery [?] -- Oscillatory Universe[?] [?] -- Outer Rook Mountains[?] [?] -- Overwhelmingly Large Telescope [?] -- Owl Nebula[?] [?] -- Ozone layer [?]
P-process[?] [?] -- Palermo Technical Impact Hazard Scale -- Palimpsest -- Pallasite[?] [?] -- Palomar Observatory Sky Survey[?] [?] -- Pan (moon) [?] -- Pandora (moon) [?] -- Panspermia -- Panzano Observatory[?] [?] -- Parabolic mirror [?] -- Parabolic reflector [?] -- Parallax -- Parallel -- Paranal Observatory[?] [?] -- Paris Observatory[?] [?] -- Parsec [?] -- Parsons, William[?] [?] -- Particle horizon[?] [?] -- Particle physics -- Pasiphae (moon) [?] -- Pauli exclusion principle -- Pavo (constellation) [?] -- Payne-Gaposchkin, Cecilia[?] [?] -- Pegasus [?] -- Pegasus (constellation) [?] -- Peirce crater[?] [?] -- Penrose, Roger -- Penumbra [?] -- Periapsis [?] -- Perpetual calendar -- Perrine, Charles Dillon[?] [?] -- Perseus (constellation) [?] -- Perseids [?] -- Persian calendar [?] -- Phecda[?] [?] -- Philosophiae Naturalis Principia Mathematica [?] -- Phoenix (constellation) [?] -- Phoebe (moon) -- Phobos (moon) [?] -- Photographic plate [?] -- Photometry [?] -- Photon -- Photon decoupling[?] [?] -- Photosphere [?] -- Physical constant -- Physical geodesy [?] -- Physical law [?] -- Physical phenomenon [?] -- Piazzi, Giuseppe [?] -- Piazzi Smyth, Charles [?] -- Picard crater[?] [?] -- Pickering, Edward[?] [?] -- Pickering, William Henry[?] [?] -- Pictor [?] -- Pierre Auger Observatory[?] [?] -- Pinwheel Galaxy[?] [?] -- Pisces [?] -- Piscis Austrinus [?] -- Planck units -- Planck's law of black body radiation [?] -- Planck, Max [?] -- Planet -- Planetarium [?] -- Planetary Hypothesis[?] [?] -- Planetary nebula -- Planetary motion[?] [?] -- Planetary nomenclature [?] -- Planetary phase[?] [?] -- Planetary ring [?] -- Planetesimal [?] -- Planetoid [?] -- Planetology [?] -- Planisphaerium[?] [?] -- Plasma -- Plasma equilibria and stability [?] -- Plasma physics -- Pleiades [?] -- Plekhnaton[?] [?] -- Ptolemaic system [?] -- Plutino -- Pluto (planet) -- Pogson, Norman Robert[?] [?] -- Poincaré, Henri [?] -- Poisson, Siméon-Denis [?] -- Polar Aurora [?] -- Polar coordinates [?] -- Polar coordinate system [?] -- Polar distance [?] -- Polarimetry[?] [?] -- Polaris -- Polarization -- Polarized light -- Pole -- Pollux [?] -- Pond, John[?] [?] -- Pons, Jean-Louis[?] [?] -- Porrima[?] [?] -- Portia [?] -- Portia (moon)[?] [?] -- Posidonius [?] -- Positional astronomy -- Potočnik, Herman -- Potsdam Observatory[?] [?] -- Pre-Nectarian[?] [?] -- Precession [?] -- Priestley, Joseph [?] -- Primary mirror [?] -- Prime meridian [?] -- Primordial black hole [?] -- Primordial material[?] [?] -- Procyon [?] -- Procyon A [?] -- Procyon B [?] -- Prograde and retrograde motion -- Prograde orbit [?] -- Proleptic Gregorian Calendar [?] -- Proleptic Julian calendar [?] -- Prometheus (moon) [?] -- Promonitorium Agarum[?] [?] -- Proper motion -- Proper motion distance[?] [?] -- Proportional [?] -- Proplyd -- Prosen, Marjan Majo[?] [?] -- Prospero [?] -- Proteus (moon) [?] -- Proton -- Proton-antiproton imbalance[?] [?] -- Proton-proton chain [?] -- Proto-star[?] [?] -- Protoplanetary disc -- Protostar [?] -- Protostellar disc[?] Proxima Centauri -- Prussian tables[?] [?] -- Prutenicae Tabulae[?] [?] -- Ptolemy -- Ptolemy Cluster[?] [?] -- Puck (moon) -- Pulsar -- Puppis [?] -- Pwyll crater -- Pyxis
Quadrant[?] [?] -- Quadrivium [?] -- Quantum chromodynamics [?] -- Quantum electrodynamics -- Quantum field theory -- Quantum gravity [?] -- Quantum mechanics -- Quaoar -- Quark [?] -- Quark-antiquark epoch[?] [?] -- Quasar [?] -- Quasar, Redshifts and Controversies [?] -- Quetelet, Lambert Adolphe Jacques [?] -- Queloz, Didier[?] [?] -- Quintessence [?]
R-process[?] [?] -- R-type asteroid[?] [?] -- Radial velocity [?] -- Radiant [?] -- Radiation pressure [?] -- Radio astronomy -- Radio galaxy [?] -- Radio star[?] [?] -- Radio telescope [?] -- Radio wave [?] -- Rainbow [?] -- Ranzinger, Pavla[?] [?] -- Rare Earth hypothesis[?] [?] -- Ras Algethi [?] -- Rayleigh scattering -- Reber, Grote[?] [?] -- Red clump[?] [?] -- Red dwarf [?] -- Red giant [?] -- Redshift -- Rees, Martin[?] [?] -- Reflection -- Reflection nebula [?] -- Reflector telescope [?] -- Refraction [?] -- Refractor telescope[?] [?] -- Regiomontanus [?] -- Regolith [?] -- Regulus [?] -- Reinhold, Erasmus [?] -- Reitsema, Harold [?] -- Research Consortium on Nearby Stars [?] -- Resolution (optics)[?] [?] -- Resolving power[?] [?] -- Reticulum [?] -- Retrograde motion [?] -- Retrogade orbit [?] -- Revised Julian calendar [?] -- Reynolds, Alastair [?] -- Rhea (moon) [?] -- Rheticus, Georg Joachim -- Rho Coronae Borealis[?] [?] -- Rhyolite [?] -- Riemannian geometry -- Rigel [?] -- Right ascension [?] -- Rijl al Awwa[?] [?] -- Rima Sirsalis [?] -- Ring current [?] -- Ring galaxy[?] [?] -- Ring Nebula [?] -- Riphaeus Mountains [?] -- Ritchey, George Willis [?] -- Ritchey-Chrétien telescope [?] -- Roche, Édouard Albert [?] -- Roche limit [?] -- Roche lobe [?] -- Roman calendar [?] -- Römer, Ole -- Rosalind [?] -- Rosette Nebula [?] -- Ross 128 [?] -- Ross 154 [?] -- Ross 248 [?] -- Royal Astronomical Society[?] [?] -- Royal Greenwich Observatory [?] -- Royal Society -- Rudbeckius, Olaus [?] -- Russell, Henry Norris [?] -- Ryle, Martin[?] [?]
S-process[?] [?] -- S-type asteroid[?] [?] -- Sabine, Edward -- Sagan, Carl -- Sagitta [?] -- Sagittarius -- Sagittarius A [?] -- Saiph [?] -- Sandage, Allan[?] [?] -- Saros cycle [?] -- Satellite [?] -- Saturn (planet) [?] -- Saturn Nebula[?] [?] -- Savile, Henry[?] [?] -- Savilian chair of astronomy [?] [?] -- Scalar [?] -- Scattered Disk Object [?] -- Scattered disk object -- Schwabe, Samuel Heinrich[?] [?] -- Scheiner, Christoph[?] [?] -- Schmidt, Bernard[?] [?] -- Schmidt, Bernhard[?] [?] -- Schmidt, Bernhard Voldomar[?] [?] -- Schmidt camera[?] [?] -- Schmidt-Cassegrain[?] [?] -- Schmidt-Cassegrain telescope[?] [?] -- Schmidt, Maarten[?] [?] -- Schmidt survey[?] [?] -- Schwabe, Heinrich[?] [?] -- Schwarzschild, Karl [?] -- Schwarzschild radius [?] -- Schwassmann-Wachmann-3[?] [?] -- Scientific journal -- Scientific paper [?] -- Scintillation [?] -- Scorpius -- Sculptor (constellation) [?] -- Sculptor Group [?] -- Scutum [?] -- Season -- Second -- Second of arc [?] -- Second Superstring Revolution [?] -- Seeing [?] -- Semidetached binary [?] -- Semimajor axis [?] -- Semiregular variable [?] -- Serpens [?] -- Serrurier trusses[?] [?] -- Setebos[?] [?] -- SETI -- Setting circle[?] [?] -- Setting circles[?] [?] -- Sextans [?] -- Seyfert galaxy [?] -- Seyfert's Sextet -- Seyfert, Carl Keenan[?] [?] -- Shape of the universe [?] -- Shapley, Harlow[?] [?] -- Shaula[?] [?] -- Shedir[?] [?] -- Shepherd satellite [?] -- Shklovsky, Iosif Samuilovich[?] [?] -- Shock wave [?] -- Shoemaker, Carolyn -- Shoemaker, Eugene [?] -- Short, James [?] -- Sidereal day -- Sidereal time [?] -- Sidereal year -- Siding Springs Observatory[?] [?] -- Sinope (moon) [?] -- Sirius [?] -- Sirius A [?] -- Sirius B [?] -- Sirona [?] -- Sirrah[?] [?] -- Sirsalis crater[?] [?] -- Sitter, Willem, de[?] [?] -- Sky -- Small-angle formula [?] -- Smith, Francis Graham[?] [?] -- Smithsonian Astrophysical Observatory[?] [?] -- Smyth, William Henry -- Snell's law [?] -- Soft gamma repeater [?] -- Soft X-ray transient [?] -- SOHO[?] [?] -- Solar activity [?] -- Solar and Heliospheric Observatory[?] [?] -- Solar calendar [?] -- Solar cosmic ray[?] [?] -- Solar cycle [?] -- Solar day [?] -- Solar eclipse -- Solar flare [?] -- Solar luminosity [?] -- Solar mass [?] -- Solar maximun[?] [?] -- Solar nebula [?] -- Solar neutrino problem -- Solar prominence[?] [?] -- Solar radiation -- Solar system -- Solar terminator line [?] -- Solar time -- Solar wind [?] -- Solar year[?] [?] -- Solstice [?] -- Sombrero Galaxy[?] [?] -- Sonneberg Observatory[?] [?] -- Sothic cycle[?] [?] -- Sothic period[?] [?] -- South Pole -- South Pole-Aitken basin [?] -- Southern Pinwheel Galaxy[?] [?] -- Soviet revolutionary calendar [?] -- Space -- Space observatory [?] -- Space science [?] -- Space weather [?] -- Spacetime -- Special relativity -- Spectral density -- Spectral line [?] -- Spectral type [?] -- Spectrograph [?] -- Spectroheliograph[?] [?] -- Spectrometry [?] -- Spectroscopy -- Spectroscopic binary [?] -- Speed of gravity -- Speed of light -- Spherical abberation[?] [?] -- Spherical coordinate system -- Spherical geometry [?] -- Spherical triangle[?] [?] -- Spica [?] -- Spiral arm[?] [?] -- Spiral galaxy [?] -- Spoerer law[?] [?] -- Sporus of Nicaea [?] -- Spotting scope [?] -- Spring [?] -- Standard candle [?] -- Star -- Star catalogue [?] -- Star cluster [?] -- Star designation [?] -- Star formation [?] -- Star party[?] [?] -- Starbust galaxy [?] -- Starfish galaxy [?] -- Steady state theory -- Stefan-Boltzmann law [?] -- Stefan, Jožef -- Stellar astronomy [?] -- Stellar classification -- Stellar dynamics[?] [?] -- Stellar evolution -- Stellar nucleosynthesis -- Stellar nursery[?] [?] -- Stellar population [?] -- Stephano [?] -- Stereographic projection -- Stevin, Simon -- Steward Observatory[?] [?] -- Strabo [?] -- Strange matter [?] -- String theory -- Strnad, Janez -- Strong interaction -- STScI [?] -- Subaru (telescope) [?] -- Subdwarf[?] [?] -- Substellar[?] [?] -- Sudbury Neutrino Observatory [?] -- Summer [?] -- Summer Solstice -- Summer Triangle [?] -- Sun -- Sun Dogs[?] [?] -- Sundial -- Sunflower Galaxy[?] [?] -- Sunrise -- Sunset [?] -- Sunspot [?] -- Sunspot Index[?] [?] -- Sunyaev-Zel'dovic-Effect[?] [?] -- Super jupiter[?] [?] -- Supercluster [?] -- Supergiant [?] -- Supergravity[?] [?] -- Superior planet [?] -- Supermassive black hole [?] -- Supernova -- Supernova 1604 [?] -- Supernova 1987a -- Supernova nucleosynthesis[?] [?] -- Supernova remnant -- Superstring theory -- Supersymmetry -- Sycorax [?] -- Sycorax (moon)[?] [?] -- Synchronous rotation [?] -- Synchrotron radiation [?] -- Synodic day[?] [?] -- Synodic month [?] -- Synodic period [?] -- Syrma[?] [?] -- Szymanski, Michal[?] [?]
T Tauri [?] -- Table of mathematical symbols -- Taikonaut [?] -- Takeuchi, Naoko -- Tau Ceti [?] -- Taurus [?] -- Telescope -- Telescope making -- Telescope mount[?] [?] -- Telescopium [?] -- Telesto (moon)[?] [?] -- Temperature -- Terminator [?] -- Terrae[?] [?] -- Terraforming [?] -- Terrestrial planet [?] -- Terrestrial Planet Finder [?] -- Terrestrial Time [?] -- Tethys (moon) -- Thabit ibn Qurra [?] -- Thai lunar calendar [?] -- Thai solar calendar [?] -- Thalassa [?] -- Thalassa (moon)[?] [?] -- Thales -- Thebe (moon) -- The Great Debate[?] [?] -- Theoretical astrophysics [?] -- Theory of everything -- Theory of relativity -- Thompson, Christopher[?] [?] -- Thompson crater[?] [?] -- Thorne, Kip [?] -- Thorne-Zytkow object [?] -- Thuban -- Tidal acceleration [?] -- Tidal force -- Tidal locking -- Tidal resonance[?] [?] -- Time -- Time travel -- Timeline of artificial satellites and space probes -- Timeline of astronomical maps, catalogs, and surveys -- Timeline of black hole physics -- Timeline of cosmic microwave background astronomy -- Timeline of cosmology -- Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure --
Timeline of knowledge about the interstellar and intergalactic medium -- Timeline of other background radiation fields -- Timeline of solar astronomy -- Timeline of solar system astronomy -- Timeline of stellar astronomy -- Timeline of telescopes, observatories, and observing technology -- Timeline of the Big Bang -- Timeline of the Universe -- Timeline of white dwarfs, neutron stars, and supernovae -- Timocharis [?] -- Tip-tilt mirror [?] -- Titan (moon) [?] -- Titania (moon) -- Titius, Johann Daniel[?] [?] -- Titius-Bode law -- Toledan tables[?] [?] -- Tombaugh, Clyde [?] -- Tonalamatl[?] [?] -- Topology of the universe [?] -- Torino scale [?] -- Trans-Neptunian object -- Transit (astronomy) [?] -- Triangulum [?] -- Triangulum Australe [?] -- Triangulum Galaxy [?] -- Trifid Nebula [?] -- Triple-alpha process [?] -- Triple star [?] -- Triton (moon) [?] -- Trojan asteroid [?] -- Tropic of Cancer [?] -- Tropic of Capricorn -- Tropical year -- Tucana [?] -- Tully-Fisher relation[?] [?] -- Tunguska event [?] -- Turbulence -- Twin paradox -- Tycho [?] -- Tzol'kin[?] [?]
UBC Liquid-Mirror Observatory[?] [?] -- Udalski, Andrzej[?] [?] -- UFO -- UKIRT [?] -- Ultimate fate of the Universe -- Ultraviolet -- Ulugh Beg [?] -- Umbra [?] -- Umbriel [?] -- Unified Theory of Active Galaxies[?] [?] -- United States Naval Observatory [?] -- Universal time [?] -- Universal Time -- Universe -- Upper Imbrian[?] [?] -- Uppsala Astronomical Observatory [?] -- Uppsala General Catalogue [?] -- Upsilon Andromedae [?] -- Urania [?] -- Uraniborg [?] -- Uranienborg [?] -- Uranus (planet) -- Ursa Major [?] -- Ursa Minor [?] -- UV astronomy [?]
V-type asteroid [?] -- Vaisala, Yrjo [?] -- Van Allen, James [?] -- Van Allen radiation belt -- Van Lansberg, Philip[?] [?] -- Variable star [?] -- Variable star designation [?] -- Varuna [?] -- Vaucouleurs, Gérard de[?] [?] -- Vega [?] -- Vela [?] -- Venus (planet) [?] -- Vernal equinox [?] -- Very Large Array [?] -- Very Large Telescope -- Very Long Baseline Interferometry [?] -- Vienna Observatory[?] [?] -- Vindemiatrix[?] [?] -- Virgo [?] -- Virgo A Galaxy [?] -- Virgo cluster [?] -- Virgo Supercluster [?] -- Visible light -- Visible spectrum [?] -- Visual binary [?] -- Visual magnitude [?] -- VLBI [?] -- VLT [?] -- VLTI [?] -- VLA [?] -- Vogel, Hermann Carl[?] [?] -- Volans [?] -- Vulpecula [?]
W UMa[?] [?] -- Walker, Richard[?] [?] -- Water maser[?] [?] -- Wavelength [?] -- Wedelin, Godefroy[?] [?] -- Week -- Weizsäcker, Carl, von[?] [?] -- Weyl, Hermann Klaus Hugo [?] -- Weyl's postulate [?] -- Wezen[?] [?] -- Whirlpool Galaxy[?] [?] -- White dwarf [?] -- White hole [?] -- Wigner, Eugene -- Wien's law [?] -- Willebrord van Roijen Snell [?] -- Wilson effect[?] [?] -- WIMP -- Winter [?] -- Winter Solstice -- Winter Triangle [?] -- Wirtz, Carl Wilhelm [?] -- Witten, Edward [?] -- WIYN Consortium [?] -- WMAP -- Wolf 359 [?] -- Wolf, Max[?] [?] -- Wolf Number[?] [?] -- Wolfe[?] [?] -- Wolfendale, Arnold[?] [?] -- Wolszczan, Aleksander[?] [?] -- Woolley, Richard van der Riet[?] [?] -- World calendar [?] -- Wren, Christopher [?]
X-ray [?] -- X-ray astronomy [?] -- X-ray binaries [?] -- X-ray burster [?] -- X-ray pulsar[?] [?] -- Xaver, Franz, Baron von Zach [?] -- Xiuhmolpilli[?] [?]
Yale Bright Star Catalog[?] [?] -- Yarkovsky effect [?] -- Year -- Yerkes telescope[?] [?] -- Yerkes Observatory [?] -- Young, Charles Augustus[?] [?]
Zaniah[?] [?] -- Zavijah[?] [?] -- Zeeman effect -- Zeeman, Pieter [?] -- Zenithal hourly rate [?] -- Zenith [?] -- Zhang Heng [?] -- Zodiac -- Zodiacal light [?] -- Zoroastrian calendar [?] -- Zwicky, Fritz[?] [?] -- Zytkow, Anna[?] [?] --
wikipedia.org dumped 2003-03-17 with terodump