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(Click for frequent words.) 63 latitudinal 61 compass headings 60 longitude 59 longitude latitude 59 latitude longitude 58 latitude coordinates 54 Greenwich meridian 54 compass bearings 54 celestial equator 54 sidereal 53 ecliptic 53 geoid 53 equatorial 53 celestial sphere 53 prime meridian 52 galactic equator 52 equator 51 azimuths 51 auroral activity 51 ecliptic plane 51 infrared wavelength 51 WGS# 51 interferograms 51 compass needle 50 sunrise sunset 50 azimuthal 50 geographical coordinates 50 Hellas Basin 50 Envisat ASAR 50 paleomagnetic 50 #th meridian 50 crustal thickness 50 biogeographic 50 Corot 9b 50 altitudinal 50 Hipparcos 49 intrinsic brightness 49 interstellar boundary 49 Syrtis Major 49 brightnesses 49 Lagrangian 49 magnetic declination 49 orbital resonance 49 cosmological distances 49 axial tilt 49 sunspot cycles 49 constellation Centaurus 49 libration 49 sunrise sunset moonrise 49 geocode 48 altimetry 48 rotational axis 48 elliptical orbits 48 Serpens Cauda 48 ocean basins 48 lunar equator 48 Cepheids 48 orbital inclination 48 Agulhas Current 48 latitude longitude coordinates 48 datums 48 magnetic polarity 48 conterminous 48 gaussian 48 ° N 48 centroid 48 Cepheid variables 48 jovian 48 antipodal 48 zodiac constellations 48 Crozet Islands 48 arcminutes 47 occultations 47 periodicities 47 speckle pattern 47 Oceanus Procellarum 47 constellation Ophiuchus 47 Tempel Tuttle 47 Doppler shift 47 GPS co ordinates 47 CoRoT satellite 47 meridional 47 landmasses 47 topographical maps 47 planets orbits 47 datum 47 interannual variability 47 isotherms 47 biogeographical 47 Pleiades cluster 47 Arabia Terra 47 waypoint 47 cosmic ray flux 47 Milankovitch cycles 47 solar minima 47 magnetotail 47 Kuiper belt objects 47 Saturnian moons 47 tropopause 47 Shackleton crater 47 Orientale Basin 47 solstices 47 constellation Ursa Major 47 constellation Eridanus 47 geographical 47 isobars 47 Cartesian coordinates 47 Algol 47 zodiacal 47 annularity 46 Rossby waves 46 galactic magnetic 46 occultation 46 trigonometric 46 luminous galaxies 46 extragalactic 46 moonset 46 Martian polar 46 exosolar planets 46 HARPS instrument 46 Kuiper Belt Objects 46 spectroscopic measurements 46 anticlockwise direction 46 moon Mimas 46 synoptic 46 Delta Cephei 46 zodiacal constellations 46 bathymetry 46 substorm 46 ° #'N 46 HM Cancri 46 Helix Nebula 46 Diviner 46 photometry 46 astrometry 46 radar altimetry 46 retrograde orbit 46 constellation Aquarius 46 auroral 46 granite greenstone 46 #Â ° [002] 46 airglow 46 geologies 46 equinoxes 46 landforms 46 Mpc 46 subpolar 46 midlatitudes 46 zodiacal light 46 lunar craters 46 infrared spectral 46 sunglint 46 ionospheric 46 SRTM 45 Atomic clocks 45 ° latitude 45 supernovae explode 45 west longitude 45 geomorphological 45 interferogram 45 eclipsing binary 45 placemarks 45 constellation Andromeda 45 Cosmic Microwave Background 45 radial velocities 45 UTM coordinates 45 obliquity 45 maps 45 circular orbits 45 Toutatis 45 intraplate 45 exoplanets planets 45 trigonometric functions 45 XTE J# 45 Vastitas Borealis 45 dI dV 45 galaxy redshift 45 transiting planets 45 tropospheric 45 Hubble orbits 45 quantum particles 45 spaceweather.com 45 astronomical observations 45 teleconnections 45 constellation Taurus 45 magnetospheric 45 pointings 45 Eridanus 45 Geomagnetic 45 momenta 45 cluster NGC 45 telescopic observations 45 planets constellations 45 Antarctic Dry Valleys 45 lunar poles 45 arcseconds 45 Whereis ® 45 comets asteroids 45 circum 45 geographic 45 planet Uranus 45 astronomical calculations 45 mantle plumes 45 geomagnetic 45 geodynamic 44 georeferenced 44 superposed 44 Isidis Planitia 44 craton 44 Cape Agulhas 44 Transiting 44 Oort cloud 44 Comet Halley 44 oxygen isotopes 44 star Spica 44 longitude coordinates 44 interferometric synthetic aperture radar 44 radians 44 electron density 44 heliopause 44 ellipsoids 44 ENAs 44 constellations 44 latitudes 44 Gliese #c 44 Slight variations 44 Comet McNaught 44 constellation Leo 44 lat lon 44 solar irradiance 44 Mössbauer 44 ephemeris 44 magnetic compass 44 waxing crescent 44 periodicity 44 Valles Marineris canyon 44 retrograde orbits 44 uniformly spaced 44 Fomalhaut b 44 ellipse 44 moonrise 44 Orion Belt 44 mid latitudes 44 Phanerozoic 44 º #'# 44 constellation Virgo 44 pairwise 44 Magnetic Pole 44 KBOs 44 perihelion 44 paleoclimatic 44 zodiac signs 44 #:#,# scale [003] 44 moon Io 44 Quadrantids 44 isosceles triangle 44 radii 44 triangulates 44 rifting 44 Noctilucent clouds 44 SINFONI 44 electron diffusion 44 X ray wavelengths 44 waxing crescent moon 44 satellite altimetry 44 photosphere 44 solar radii 44 oceanic circulation 43 exon intron 43 tidally 43 Hadley Rille 43 polar latitudes 43 #:#,# scale [001] 43 elevational 43 NEAs 43 Milankovitch 43 exoplanetary systems 43 echosounder 43 illuminance 43 Monoceros 43 equilateral triangle 43 topography 43 Venn diagrams 43 sunspot 43 diffraction patterns 43 tectonically active 43 earths surface 43 shifting tectonic plates 43 moons Phobos 43 dust enshrouded 43 Amundsen Sea 43 RRATs 43 tropical zodiac 43 shapefiles 43 southern latitudes 43 Fram Strait 43 spatial variability 43 remotely sensed 43 Upsilon Andromedae 43 topographic map 43 geographic coordinates 43 topographic 43 shoguns ruled 43 Hipparchus 43 tropical latitudes 43 GCDB 43 interstellar dust grains 43 VLBA observations 43 Gamburtsev 43 stellar occultations 43 celestial objects 43 oxygen isotopic 43 geographical co ordinates 43 Pluto Charon 43 z axes 43 Planitia 43 Capricornus 43 transects 43 GRIB files 43 Vastitas Borealis akin 43 geostationary orbits 43 Cassini flyby 43 fractal patterns 43 ° #'# .# 43 penumbral shadow 43 gridlines 43 equatorial regions 43 Hunga Tonga 43 orbital 43 redshifts 43 aurora 43 AMSR E 43 bimodal distribution 43 φ 43 constellation Cygnus 43 baryon acoustic oscillations 43 NGC #A 43 moonquakes 43 ° #'E 43 elemental composition 43 temperate latitudes 43 mineralogical composition 43 coronal loop 43 NDVI 43 THEMIS satellites 43 gravitational wobbles 43 Tectonic Plate 43 Prydz Bay 43 Earth radii 43 Encke gap 43 Magellanic Stream 43 parameterization 43 multi decadal 43 CoRoT 9b 43 Artic Circle 43 Geminga 43 hyperbolic geometry 43 Gemini Telescope 43 geocoded 43 extrasolar planetary systems 43 Perseus constellation 43 lunar orbiters 43 glacial cycles 43 Gravitational waves 43 heavily cratered 43 ITCZ 43 physiographic 43 Vedic astrology 43 supercontinent Pangaea 43 astronomical objects 43 cirrus 43 seismically active zones 43 atmospheric phenomena 43 volcanically active 43 topo map 43 submillimetre 43 spiral galaxy NGC 43 Terra Meridiani 43 Madden Julian Oscillation 43 Pleiades star 43 spectrograms 43 gravitational perturbations 43 arcsecond 43 cosmic ray intensity 43 dynamical 43 Gaussian distribution 43 anisotropy 43 gravitational lenses 43 constellation Ara 43 STEREO spacecraft 43 sidereal zodiac 43 Omega Centauri 43 Ontario Lacus 43 SeaWiFS 43 Comet Encke 43 ESA Envisat 43 equatorial bulge 43 thermometer readings 43 Kuroshio Current 43 lensing galaxy 42 Asterisks indicate 42 Antarctica 42 combinatorics 42 asterism 42 transect 42 CMB radiation 42 tides currents 42 planet Gliese #g 42 Antartica 42 temperature gradients 42 comets orbiting 42 anticyclonic 42 gravitational keyhole 42 Mars Squyres 42 True thicknesses 42 Earth orbiting satellites 42 Gondwanaland 42 chemical abundances 42 hypotenuse 42 Index NDVI 42 Magellanic 42 waning gibbous 42 quantum particle 42 aphelion 42 Jupiter moons 42 θ 42 intracluster 42 trans Neptunian objects 42 glacial interglacial 42 galaxy M# [001] 42 Oort Cloud 42 Jupiter magnetosphere 42 unpolarized 42 hydrostatic equilibrium 42 Venusian 42 backscattered 42 antineutrinos 42 palaeoclimate 42 Methone 42 Corot 7b 42 planetary orbits 42 Hubble Constant 42 blackbody 42 Waldseemueller Gores 42 scatterplot 42 irradiance 42 reflection nebula 42 Martian equator 42 Lunar Orbiter Laser Altimeter 42 Wolf Rayet stars 42 y axis 42 HD#b 42 polar 42 transiting exoplanets 42 highly elliptical orbit 42 comet Churyumov Gerasimenko 42 khipu 42 magnetic substorms 42 seismogenic 42 Magellanic Clouds 42 umbral shadow 42 numerical 42 SNe Ia 42 windspeed 42 calendrical 42 dipole moment 42 situ measurements 42 dimensional atlas 42 waypoints 42 volcanic plumes 42 advection 42 constellation Pisces 42 placemark 42 radiosondes 42 Bijagos 42 Geminid meteors 42 HF propagation 42 GPS coordinates 42 umbra 42 annular eclipse 42 constellation Sagittarius 42 Kepler 9c 42 sunspots 42 meridian 42 MODIS 42 faintest galaxies 42 ejecta blanket 42 sunlike stars 42 interglacial periods 42 distant quasars 42 Saturn moon Mimas 42 waning crescent 42 prograde 42 Aqua satellite 42 subantarctic 42 latitude 42 auroral displays 42 vorticity 42 EEZs 42 astrological signs 42 ionized hydrogen 42 OGLE TR 42 Aerial photography 42 smoothest flattest 42 LRO spacecraft 42 constellation Cetus 42 Cygnus Lyra region 42 Celestial Pole 42 Jovian moons 42 ionosphere 42 Cancri e 42 Jakobshavn Isbrae 42 Puppis 42 supercontinent 42 maxima 42 Valles Marineris 42 magnetotactic bacteria 42 alphanumerical 42 latitude longitude altitude 41 Carina constellation 41 orthographic 41 McMurdo Dry Valleys 41 J# +# [002] 41 solar insolation 41 tectonic movements 41 Greater Antilles 41 auroral emissions 41 faint smudge 41 bathymetric 41 sedimentary deposits 41 N. Rathnasree 41 TNOs 41 humid subtropical climate 41 radiative transfer 41 climatological 41 Moho 41 smallest exoplanet 41 rotational velocity 41 arcsec 41 serpent bearer 41 navaids 41 submillimeter wavelengths 41 ESO PR 41 Disko Bay 41 USArray 41 pericentre 41 kyr 41 earthshine 41 celestial navigation 41 Coma cluster 41 drifting buoys 41 planet transits 41 mya 41 ULIRGs 41 radial velocity 41 sunspot cycle 41 southernmost 41 celestial bodies 41 Dry Valleys 41 astrophysical objects 41 thin crescent 41 resonance frequency 41 equilateral triangles 41 iceberg calving 41 equatorial Pacific Ocean 41 Bouvet Island 41 astronomical phenomena 41 called lobate scarps 41 lunar perigee 41 Sermilik Fjord 41 Bojowald 41 seismologic 41 absorption spectra 41 VIRTIS 41 missing baryons 41 planetary magnetospheres 41 Quadrantid meteor shower 41 geomorphology 41 laser altimeter 41 equinox 41 geolocated 41 geologic interpretations 41 Saturn Cassini 41 Kelvins 41 ° #'# 41 upper troposphere 41 millimeter wavelengths 41 Jupiter Saturn 41 cosmic phenomena 41 Comet NEAT 41 Sample intervals 41 SDSS II 41 Guatemala Belize 41 invariant 41 interglacials 41 orbited Jupiter 41 magnetic electromagnetic 41 ancient supercontinent 41 phonetic alphabet 41 northernmost 41 coldest driest 41 decadal 41 Cryogenian period 41 wavefunction 41 poleward shift 41 astronomer Edmond Halley 41 speleothems 41 Deccan Plateau 41 nebula NGC 41 spiral nebulae 41 spatial scales 41 Comet Lulin 41 spectral radiance 41 Brillouin zone 41 lunar crust 41 map 41 minima 41 Orcus Patera 41 Epsilon Eridani 41 zodiac 41 Kuiper Belt Object 41 radial velocity method 41 magnon 41 planimetric 41 CMB photons 41 shadowy craters 41 intertropical convergence zone 41 Galilean moons 41 NAD# [001] 41 X ray pulses 41 structural lineaments 41 depositional environment 41 vector raster 41 Heisenberg Uncertainty Principle 41 topographical 41 oxygen isotope 41 deg 41 nautical mile radius 41 Gondwanan 41 #.#C #.#C 41 Geographical 41 aurorae 41 Doppler shifts 41 sized planets orbiting 41 underwater Lomonosov Ridge 41 meridional flow 41 ESO VLT 41 Earths crust 41 vertices 41 waxing gibbous 41 amplitudes 41 Earth asteroids NEAs 41 Marquesas Islands 41 SST anomalies 41 interstellar dust clouds 41 insolation 41 Meteor showers 41 katabatic winds 41 Gangetic Plain 41 vegetation greenness 41 spacecraft orbited 41 infrared spectra 41 constellations Cygnus 41 geography 41 digit postcode 41 Hellas Planitia 41 NASA rovers Spirit 41 magnetic excitations 41 arcuate 41 Cenozoic 41 Kerguelen 41 temperature salinity 41 Mapped 41 Antarctic continent 41 cosmological models 41 isotherm 41 Northwesterly 41 submarine volcanoes 41 spectral fingerprint 41 THEMIS 41 Saturn moon Iapetus 41 cirrus cloud 41 Southern Oscillation 41 Cepheus 41 heliosheath 41 phenological 41 Fra Mauro 41 nebulosity 41 hunting Kepler telescope 41 solar corona 41 equatorial latitudes 41 constellation Libra 41 isotopic 41 gaseous planets 41 Fourier transforms 41 planets Uranus 41 innermost planet 41 radial velocity technique 41 strontium isotope 41 COROT 41 moons circling 41 El Niño La Niña 41 isotopic compositions 41 RY Sagittarii 41 stellar occultation 41 maps atlases 41 yr -1 41 luminosities 41 graceful curving 41 sextant 41 lobate scarps 41 gravitational acceleration 41 AU Mic 41 spatially resolved 41 Geographic 41 cesium atom 40 Mimas 40 sextants 40 abyssal plains 40 Shuttle Radar Topography 40 Olympus Mons 40 z = 40 noctilucent clouds 40 NNE SSW 40 blue supergiant 40 heliospheric 40 Chukchi Cap 40 Earthlike planets 40 umbral 40 Kerguelen Island 40 Earth ionosphere 40 anatomical landmarks 40 GRB #A 40 constellation Aquila 40 magnetopause 40 ordinal 40 glaciated 40 Martin Waldseemuller 40 Coma Cluster 40 approximations 40 Siberia Mongolia 40 Observable 40 hydrographic 40 continental drift 40 obscuration 40 bays inlets 40 Raman spectra 40 helicity 40 Climate Experiment GRACE 40 geosynchronous 40 easternmost tip 40 Espenak 40 Eratosthenes 40 coronal loops 40 constellation Monoceros 40 Astronomical Units 40 ESA Envisat satellite 40 Earthlike 40 lognormal 40 Earthquake magnitudes 40 oceanic currents 40 basaltic rocks 40 Landsat satellite 40 Samuel Oschin Telescope 40 celestial phenomena 40 electromagnetic spectrum 40 velocity vector 40 OSTM Jason 2 40 HARPS spectrograph attached 40 Bok globules 40 planetary alignments 40 Normalized Difference Vegetation 40 degrees #'N 40 millimetric 40 faintly visible 40 Ophiuchus 40 SSTs 40 diacritics 40 radiosonde 40 Ross Ice Shelf 40 periodic dimming 40 lunar topography 40 chromosphere 40 centerlines 40 extrasolar worlds 40 gravities 40 -# deg [002] 40 isotope composition 40 logarithm 40 atlas 40 submillimeter wavelength 40 interferometers 40 cardinality 40 POES 40 rotates clockwise 40 Fibonacci ratios 40 constellations planets 40 Epsilon Aurigae 40 eclipsing binaries 40 ley lines 40 auroral oval 40 Mawrth Vallis 40 azimuth 40 Wilkinson Microwave Probe 40 Sotra 40 Galilean satellites 40 midlatitude 40 geyser plumes 40 GeoSAR 40 Holocene epoch 40 Polar Regions 40 geographical location 40 cosmic microwave radiation 40 ocean sediment cores 40 geotagged images 40 inhabitable planets 40 Atlantic Multidecadal Oscillation AMO 40 Aeromagnetic 40 ecoregions 40 Timorous Deep 40 orbital mechanics 40 NASA satellites orbiting 40 Euclidean 40 vesper bats 40 constellation Scorpius 40 dimensionless 40 Habitable Zone 40 numerics 40 star clusters nebulae 40 Orionids 40 celestial mechanics 40 sub tropic 40 Mare Imbrium 40 Gondwana supercontinent 40 Ulysses spacecraft 40 º #'# N 40 ancient Polynesians 40 Paliki 40 HIRES spectrometer 40 exo planets 40 Composite Infrared Spectrometer 40 Indus valley 40 Perseus Cluster 40 binary asteroid 40 migrational 40 orbital eccentricity 40 planetary Transits 40 exoplanets orbiting 40 geo stationary satellites 40 compasses 40 Shackleton Crater 40 orthorectified 40 metallicity 40 NASA Wilkinson Microwave 40 forcings 40 maps satellite imagery 40 globe Stevick 40 geomagnetism 40 Chajnantor 40 planets asteroids 40 geophysically 40 Chryse Planitia 40 sunward 40 PLSS 40 Planck telescope 40 constellation Carina 40 constellation Perseus 40 palaeo 40 northwesternmost 40 bedrock outcrops 40 Zip +4 40 polar caps 40 distant supernovae 40 Einstein relativity 40 sedimentological 40 elongated orbits 40 Okmok Caldera 40 MG J# +# 40 solunar 40 previously unmapped 40 Inputting 40 Throw dart 40 Mercator projection 40 El Nino Southern Oscillation 40 hPa 40 tsunamigenic 40 Pavonis Mons 40 faunas 40 binary quasar 40 synthetic aperture 40 deglaciation 40 star IM Pegasi 40 GJ #b [001] 40 biogeography 40 slender crescent 40 lithosphere 40 ordinary differential equations 40 planetary atmospheres 40 cosmological parameters 40 Nares Strait 40 outer corona 40 Gamma ray burst 40 MERIS 40 comet Tempel Tuttle 40 F#W 40 waxing gibbous moon 40 exoplanetary 40 Radiometric 40 Circinus 40 lunar crescent 40 Lagoon Nebula 40 groundspeed 40 Neptune Uranus 40 Kepler #b 40 humid tropics 40 Planck satellite 40 constellation Hercules 40 geodesy 40 topographic mapping 40 δ 40 cryovolcanism 40 Muchachos Observatory 40 xn 40 subarctic 40 Pacific Subtropical Gyre 40 satellites orbiting 40 Mauna Kea Hawaii 40 ° #N 40 Maunder minimum 40 interglacial period 40 heterogeneities 40 nucleotide sequence 40 spectral characteristics 40 chargeability resistivity 40 Subduction zones 40 endless expanse 40 gravitational redshift 40 westerly trough 40 ellipsoidal 40 diffuse aurora 40 Delta Aquarids 40 Alfven waves 40 metallogenic 40 Meridiani 40 scatterometer 40 multidecadal 40 polynomial 40 Brahmi script 40 Nankai Trough 40 terra forming 40 Kermadec Arc 40 ellipsoid 40 Tertiary Period 40 Last Glacial Maximum 40 HiRISE images 40 Chilean fjords 40 crustal plate 40 Topographic 40 Big Dipper constellation 40 crustal 40 astrophysical phenomena 40 continental landmass 40 outer planets 40 Gusev crater 39 logarithmic scale 39 absorbs photons 39 Saharan Desert 39 surface temperatures SSTs 39 ENSO cycle 39 geologically active 39 Moderate Resolution Imaging 39 Ushuaia Argentina 39 habitable zones 39 coral atolls straddling 39 Solar TErrestrial RElations Observatory 39 explosive volcanism 39 R Coronae Borealis 39 double helix nebula 39 vedic astrology 39 Elenin 39 Equator 39 Saturn equinox 39 Einstein theories 39 planet Gliese #c 39 Type Ia supernovas 39 abeam 39 hardiness zones 39 OS Landranger 39 cell tower triangulation 39 Muons 39 active volcanism 39 coal seam thickness 39 variograms 39 planetary surfaces 39 Fossae 39 Karakoram mountain 39 Cryogenian 39 shadowed craters 39 Transantarctic Mountains