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(Click for frequent words.) 65 Long Baseline Array 63 VLTI 62 ESO VLT 61 interferometry 61 submillimeter 61 distant quasar 60 VLBI 60 XMM Newton 60 submillimetre 60 submillimeter wavelengths 60 Mpc 59 interferometer 59 X ray telescopes 59 ESO telescope 59 e MERLIN 59 radial velocity 59 spectroscopic observations 59 Keck telescope 59 ESO Very Large Telescope 59 LOFAR 58 interferometric 58 spectroscopic measurements 58 Interferometer VLTI 58 Keck Interferometer 58 GALEX 58 NASA Wilkinson Microwave 58 gamma ray flares 58 Anisotropy Probe WMAP 58 photometry 57 blazars 57 imaging spectrometer 57 X ray wavelengths 57 telescope 57 Fermi telescope 57 multiwavelength 57 polarimetry 57 Beta Pictoris b 57 Long Baseline Interferometry 57 Very Large Array 57 detect gravitational waves 57 Spectrograph 57 J# +# [002] 57 cosmological distances 57 Keck telescopes 57 interferometric observations 57 SINFONI 56 supergiant star 56 HARPS spectrograph attached 56 distant galaxies 56 distant quasars 56 ESO Paranal Observatory 56 Triangulum Galaxy 56 submillimetre wavelengths 56 Very Large Telescope 56 Atacama Large Millimeter Array 56 telescopes 56 photometer 56 optical telescopes 56 Array ALMA 56 Hubble observations 56 microlensing 56 distant galaxy 56 Keck Telescope 56 extragalactic 56 EVLA 56 millimeter wavelengths 56 fainter objects 56 radiotelescope 56 arcseconds 55 Andromeda Galaxy 55 Large Array 55 optical interferometry 55 ESA XMM Newton 55 astronomy observatory 55 occultations 55 Herschel Space 55 optical wavelengths 55 Arecibo Observatory 55 backscattered 55 ROSAT 55 submillimeter wavelength 55 arcminutes 55 WM Keck Observatory 55 Submillimeter Array 55 Hubble Space Telescope HST 55 Planck telescope 55 gamma ray observatory 54 Field Imager 54 orbiting gamma ray 54 X ray pulses 54 Planck satellite 54 astronomers 54 microquasar 54 wavelength infrared 54 Lovell Telescope 54 arcsec 54 Subaru Telescope 54 LORRI 54 FWHM 54 Atacama Large Millimeter submillimeter 54 WMAP 54 redshift 54 Fomalhaut b 54 Anisotropy Probe 54 GRB #B 54 NICMOS 54 attosecond 54 XMM Newton satellite 54 HD#b 54 millisecond pulsar 54 galaxy M# [002] 54 VIMOS 54 AKARI 54 exoplanetary 54 gamma ray emission 54 Andromeda galaxy 54 Delta Cephei 54 optical telescope 54 photon counting 54 photometric 54 Red Rectangle 54 galaxy cluster 54 Spitzer infrared 54 gravitationally lensed 54 astrophysical phenomena 54 UKIRT 54 RS Ophiuchi 54 Cepheid variables 54 ultraviolet wavelengths 53 Telescope 53 panchromatic 53 infrared wavelength 53 infrared ultraviolet 53 infrared astronomy 53 polarimeter 53 La Silla Chile 53 Submillimeter 53 Cerro Paranal 53 Astrophysical Research 53 beamline 53 Nikon D# Kowa 53 geosynchronous satellites 53 SuperWASP 53 gamma ray burst 53 WFPC2 53 spectroscopy 53 UVOT 53 HD# [005] 53 redshifts 53 galaxy NGC 53 supernova remnant 53 Interferometer 53 ray Space Telescope 53 Planetary Transits 53 La Silla Observatory 53 adaptive optics 53 Adaptive optics 53 VISTA telescope 53 Southern Observatory ESO 53 gravitational lens 53 millisecond pulsars 53 faint galaxies 53 HESS telescopes 53 SDSS II 53 astrometry 53 CHARA 53 spectrographs 53 spectroscopically 53 Keck Telescopes 53 gamma ray 53 GRB# 53 COROT 53 X ray observatory 53 OGLE TR 53 constellation Ursa Major 53 XMM Newton observatory 53 interferometers 53 Fermi LAT 52 aboard ESA Envisat 52 e VLBI 52 stellar occultations 52 LIGO 52 WIYN 52 Mauna Kea Hawaii 52 ESA Integral 52 optical microscopy 52 Active Galactic Nuclei 52 Rosetta orbiter 52 Virgo Cluster 52 RXTE 52 Small Magellanic Cloud 52 brightnesses 52 Geminga 52 Paranal Chile 52 cosmic microwave radiation 52 X ray emission 52 astronomical telescope 52 XMM Newton X ray 52 MG J# +# 52 hexagonal mirrors 52 HARPS instrument 52 infrared telescopes 52 radiometers 52 Paranal Observatory 52 eclipsing binary 52 ESO La Silla 52 THEMIS satellites 52 TSN PZ camera 52 gravitational lenses 52 infrared wavelengths 52 C1XS 52 Cepheids 52 Adaptive Optics 52 gravitational microlensing 52 ESO telescopes 52 giant elliptical galaxy 52 spiral galaxy NGC 52 SN #A 52 spectrometer 52 Mössbauer 52 Multi Object Spectrograph 52 VIRTIS 52 planetary Transits 52 celestial objects 52 Observatory Very 52 spectra 52 astrometric 52 GRB #A 52 VLBA observations 52 CoRoT satellite 52 SNR #-#.# 51 X ray spectrometer 51 Crab Pulsar 51 William Herschel Telescope 51 Cosmic Background Explorer 51 X ray observatories 51 quasars 51 Interferometric 51 Lyman alpha 51 HARPS 51 gravitational wave 51 polarimetric 51 Fermi Gamma ray 51 Comet Holmes 51 RRATs 51 electron volt 51 ultraviolet imaging spectrograph 51 arcsecond 51 auroral emissions 51 elliptical galaxy NGC 51 dipole moment 51 QCLs 51 ESO PR 51 distant galaxy clusters 51 active galactic nuclei 51 airglow 51 solar corona 51 Doppler shifts 51 auroral 51 synchrotron radiation 51 HD# [002] 51 PKS #-# 51 luminous galaxies 51 constellation Aquarius 51 synchrotron X ray 51 Square Kilometer Array 51 Cat Paw Nebula 51 Heterodyne Instrument 51 NASA Chandra 51 synthetic aperture 51 infrared spectra 51 gamma ray bursts 51 robotic telescopes 51 elliptical galaxy 51 gravitational radiation 51 Telescope LSST 51 muon neutrinos 51 spectral characteristics 51 Using ESO Very 51 Rosette Nebula 51 celestial object 51 wavelengths 51 radiometer 51 Gamma ray 51 Infrared Telescope Facility 51 RHESSI 51 AGNs 51 weak gravitational lensing 51 Optical Gravitational Lensing Experiment 51 HARPS spectrograph 51 Arecibo telescope 51 Orion Nebula 51 X ray binary 51 Wilkinson Microwave Anisotropy Probe 51 ESA SMART 51 STEREO spacecraft 51 X ray afterglow 51 transiting exoplanets 51 Observatory NOAO 51 NASA Landsat 51 solar radii 51 infrared observatory 51 NASA Far Ultraviolet 51 Comet Halley 51 particle detectors 51 Arches Cluster 51 Advanced Photon Source 51 Epsilon Eridani 51 maser 51 millimeter wavelength 51 Muchachos Observatory 51 cluster NGC 51 Ulysses spacecraft 51 TrES 51 synchrotrons 51 quasar 51 Cosmic Background Explorer COBE 50 x ray pulses 50 infrared spectral 50 detect gamma rays 50 infrared imager 50 Hobby Eberly Telescope 50 star Gliese 50 gravitational waves 50 Infrared Astronomical Satellite IRAS 50 UVIS 50 Evolution Explorer 50 Near Infrared Camera 50 Crab Nebula 50 transmission electron microscope 50 Space Telescope 50 luminosities 50 orbiting Hubble Space Telescope 50 pointings 50 Perseus Cluster 50 OSIRIS 50 Pan STARRS 50 coronal loops 50 Interferometry 50 extrasolar planets orbiting 50 coronagraph 50 cosmic cannibal 50 neutral mass spectrometer 50 Chajnantor plateau 50 elliptical orbits 50 galaxy M# [001] 50 keV 50 transiting planet 50 atop Mauna Kea 50 distant supernovae 50 constellation Carina 50 microlensing events 50 Proxima Centauri 50 monochromator 50 X ray Observatory 50 E ELT 50 blazar 50 cosmic ray 50 Type Ia supernovas 50 APEX telescope 50 Cancri e 50 Area Telescope LAT 50 transiting planets 50 infrared interferometry 50 ionospheric 50 Carina constellation 50 stellar occultation 50 spectrographic 50 JCMT 50 AU Mic 50 starburst galaxy 50 Spectrometer 50 planets orbiting 50 ASTRON 50 laser pulses 50 Gemini telescopes 50 Infrared Thermal Imaging Spectrometer 50 meter Keck telescopes 50 spectroscopic 50 ultrahigh resolution 50 orbiting observatories 50 extrasolar planet 50 constellation Centaurus 50 optical spectra 50 Subaru telescope 50 HUDF 50 Lagoon Nebula 50 F#W 50 NIRCam 50 Spectrometers 50 inch refractor telescope 50 GRB # 50 starburst galaxies 50 Galaxy Evolution 50 FUV 50 SUSY 50 D CIXS 50 Samuel Oschin Telescope 50 La Silla observatory 50 astronomical observations 50 Solar TErrestrial RElations Observatory 50 IR LEDs 50 nm spectral 50 radial velocities 50 Laser Interferometer Gravitational Wave 50 beamlines 50 retroreflector 50 Corot 9b 50 NASA WMAP 50 HD #b [002] 50 constellation Hercules 50 deformable mirror 50 frequency comb 50 Keck Observatory 50 extrasolar 50 radial velocity method 50 planet orbits 50 moon Io 49 blackbody 49 auroral displays 49 Cherenkov radiation 49 Epsilon Aurigae 49 diffraction patterns 49 Milky Way Galaxy 49 DEIMOS 49 ESA ERS 49 afterglows 49 multispectral imager 49 ASKAP 49 aperture telescope 49 Pluto Charon 49 fluorescence excitation 49 SPIRE 49 synchrotron 49 Australian SKA Pathfinder 49 photons emitted 49 foreground galaxy 49 Manchester Jodrell Bank 49 Large Telescope 49 Fornax cluster 49 2MASS 49 spectral fingerprint 49 IBEX spacecraft 49 GeV 49 Energy Stereoscopic 49 linearly polarized 49 AAVSO 49 spectral bands 49 NRAO 49 WISE infrared 49 Great Observatories 49 Convection Rotation 49 masers 49 spiral galaxy Messier 49 HM Cancri 49 UVES 49 astro comb 49 eyepiece #/#s f/#.# 49 Explorer WISE 49 visible wavelengths 49 mu Arae 49 Compact Array 49 Field Imager WFI 49 terahertz THz 49 Ultraviolet Optical Telescope 49 located atop Mauna 49 Multi Object Spectrometer 49 Comet Lulin 49 Upsilon Andromedae 49 HRSC 49 Solar Orbiter 49 jovian 49 azimuthal 49 Unit Telescopes 49 Scanning Transmission Electron 49 radio occultation 49 gaseous planet 49 ESA Herschel 49 ESA Planck 49 photon fluorescence 49 CoRoT 49 femtosecond pulses 49 exoplanet 49 infrared spectrometers 49 constellation Cassiopeia 49 Digitized Sky Survey 49 scanning electron microscope SEM 49 Antenna LISA 49 Neutral Mass Spectrometer 49 proton proton 49 spatial resolution 49 interacting galaxies 49 binary quasar 49 Hanny Voorwerp 49 ESA Envisat satellite 49 Cerro Pachón 49 gamma ray detector 49 Helix Nebula 49 J#.# [001] 49 GLAST Burst Monitor 49 Cancri 49 TW Hydrae 49 spiral galaxy M# 49 relativistic jets 49 Virgo cluster 49 Planetary Camera 2 49 meter Keck telescope 49 HII regions 49 Synthetic Aperture Radar SAR 49 constellation Lyra 49 NIRSpec 49 WFC3 49 rocky extrasolar planet 49 shorter wavelengths 49 particle detector 49 filamentary structure 49 SIRAL 49 BLG #Lb 49 Cygnus Lyra region 49 exoplanets orbiting 49 helium ions 49 correlator 49 barred spiral galaxy 49 Cerro Paranal Chile 49 Burst Alert 49 Hipparcos 48 MeerKAT 48 Climate Experiment GRACE 48 Large Magellanic Cloud 48 INMS 48 intrinsic brightness 48 NASA Infrared Telescope 48 optical microscope 48 Chilbolton 48 Square Kilometre Array SKA 48 RY Sagittarii 48 globular cluster 48 XTE J# 48 X ray telescope 48 Stephan Quintet 48 astrophysical 48 WMAP satellite 48 GJ #b [001] 48 constellation Aquila 48 Observatory telescope 48 Kuiper Belt Object 48 redshifted 48 sub millimeter wavelengths 48 LROC 48 System HESS 48 DISR 48 NASA ESA Hubble 48 Omega Centauri 48 occultation 48 x ray beam 48 Beta Pictoris 48 Type Ia supernova 48 orbiting Chandra 48 Imaging Spectrometer 48 Gemini Observatory 48 radial velocity technique 48 GRBs 48 Milky Way halo 48 planet orbiting 48 Earth orbiting satellites 48 MPIfR 48 multibeam 48 Telescope Array 48 periodic dimming 48 diffraction pattern 48 radial velocity measurements 48 electron diffraction 48 LCLS 48 Magnetic Imager HMI 48 SeaWiFS 48 #.#nm [002] 48 AB Aurigae 48 pulsar 48 supermassive 48 STIS 48 Arecibo radar 48 confocal scanning 48 earthshine 48 HD #b [001] 48 NASA Fermi Gamma 48 Diviner 48 Galilean moons 48 Planck 48 NOAO 48 G#.# +#.# 48 SPIRE instrument 48 wavelength 48 muon neutrino 48 X ray spectroscopy 48 gamma ray telescopes 48 brightfield 48 Total Ozone Mapping 48 x ray scattering 48 lensing galaxy 48 CTIO 48 galaxy redshift 48 Eta Carinae 48 VHE gamma rays 48 double helix nebula 48 ionised gas 48 YORP effect 48 diffuse aurora 48 SDSS 48 Advanced LIGO 48 infrared telescope 48 astronomical objects 48 exoplanet orbiting 48 Infrared Telescope 48 spatially resolved 48 NASA Gamma ray 48 SKA telescope 48 Plate Boundary 48 GROND 48 laser altimeter 48 Comet Hartley 48 constellation Cepheus 48 TU# [002] 48 Extrasolar Planet Search 48 hyper spectral 48 extrasolar planetary systems 48 Earthscope 48 COBE satellite 48 Extragalactic 48 magnetospheric 48 exoplanets 48 Faint Object 48 AVHRR 48 Astronomers 48 constellation Scorpius 48 Lunar Orbiter Laser Altimeter 48 Wide Angle Search 48 interferogram 48 photoemission 48 Las Campanas Observatory 48 velocity Planet Searcher 48 asteroseismology 48 intracluster 48 Brookhaven Relativistic Heavy 48 TNOs 48 baryon acoustic oscillations 48 pulsars 48 Doppler velocity 48 OGLE TR #b 48 monochromators 48 amateur astronomers peering 48 planets orbiting distant 48 EarthScope 48 arcmin 48 X ray beams 48 TGFs 48 Long Wavelength Array 48 EMCCD 48 CFHT 48 Light Detection 48 CCD camera 48 spectroscopic analysis 48 ultrashort laser pulses 48 ChemCam 48 Infrared Telescope UKIRT 48 infrared 48 NanoSIMS 48 Encke gap 48 X ray spectra 48 ENVISAT 48 Arecibo radio 48 Spectroscopic 48 Gamma ray Burst 48 circularly polarized 48 Spitzer Space Telescope 48 Astrophysicists 48 Ring Nebula 48 Jovian moons 47 cosmic ray particles 47 HRTEM 47 Infrared Pathfinder Satellite 47 spectrometric 47 Infrared Camera 47 spectrograph 47 interstellar boundary 47 orbits 47 Pleiades cluster 47 Moessbauer 47 NASA Cosmic Background 47 Gravitational waves 47 Cosmic Microwave Background 47 PSR B# 47 Synthetic Aperture Radar 47 Infrared Array Camera 47 widefield 47 Wolf Rayet stars 47 Suzaku X ray 47 inch Schmidt Cassegrain 47 galaxy clusters 47 GJ#b 47 Resolution Imaging Spectrometer 47 Collider Detector 47 neutron spectrometer 47 Large Telescope SALT 47 Descent Imager Spectral Radiometer 47 spiral galaxy 47 Envisat satellites 47 KBOs 47 Orbiter LRO 47 infrared LEDs 47 gravitational redshift 47 Paranal 47 Advanced Camera 47 Konacki 47 unpolarized 47 Coma Cluster 47 circumstellar disks 47 Cerro Armazones 47 Eagle Nebula 47 geostationary satellite 47 HIRES spectrometer 47 high redshift galaxies 47 bolometer 47 constellation Andromeda 47 Auger Observatory 47 spacecraft Cassini 47 infrared spectrograph 47 planet Gliese #g 47 SEGUE 47 near infrared NIR 47 Antennae Galaxies 47 OGLE 47 UV wavelengths 47 HiRISE image 47 surface plasmon 47 Toutatis 47 multispectral 47 lightwaves 47 Hubble Ultra 47 Doradus 47 photoluminescence 47 NASA Cassini spacecraft 47 BLG #L 47 electronvolts 47 Advanced Microwave Scanning 47 interplanetary spacecraft 47 detect neutrinos 47 electron neutrinos 47 SAXS 47 SIM PlanetQuest 47 cosmic ray observatory 47 HiRISE camera aboard 47 energetic gamma rays 47 Thermal Emission Spectrometer 47 merging galaxies 47 LAGEOS 47 red supergiant 47 Heliospheric Observatory SOHO 47 photoelectron spectroscopy 47 National Optical Astronomy 47 Ikonos 47 QWIP 47 Antennae 47 HiRISE camera 47 orbiting telescopes 47 radar altimetry 47 microshutters 47 deconvolution 47 imager 47 ESA Envisat 47 Laser Ranging 47 spectrometers 47 cosmic microwave background 47 Jodrell Bank Observatory 47 Cosmic Microwave Background CMB 47 Seyfert galaxies 47 SIRTF 47 microprobe 47 velocity dispersion 47 neutron scattering 47 retrograde orbit 47 planetary nebulae 47 GMRT 47 aperture lens 47 constellation Sagittarius 47 ESA Cluster 47 SNe Ia 47 NOAA GOES 47 comet nucleus 47 confocal 47 exoplanets planets 47 dwarf galaxy 47 reflectometry 47 accretion disks 47 gamma ray telescope 47 Mini Thermal Emission 47 SQUIDs 47 CSIRO Parkes radio 47 kpc 47 SECCHI 47 supernova remnants 47 interferometric technique 47 illuminance 47 Valles Marineris canyon 47 globular cluster M# 47 Earthlike planets 47 IceCube 47 CALIPSO 47 outermost planets 47 Herschel telescope 47 neutron stars 47 Spitzer infrared spectrograph 47 inch Samuel Oschin 47 Infrared Mapping Spectrometer VIMS 47 fluorescence detector 47 TrES 4 47 MERIS 47 gravitational lensing 47 Lunar Reconnaissance Orbiter Camera 47 VIRTIS instrument 47 APXS 47 Landsat satellite 47 #nm laser [002] 47 Cerro Tololo 47 galaxies 47 galactic nuclei 47 Beehive Cluster 47 lensless imaging 47 Resolution Instrument 47 Radioastronomy 47 Doppler shift 47 unaided eye 47 binary asteroid 47 Pierre Auger Observatory 47 neutrino detector 47 equatorial orbit 47 Mini TES 47 frequency VLF 47 Gamma ray Large 47 Solar Observatory 47 THEMIS 47 optical infrared telescope 47 ESRF 47 Laser Interferometer Space 47 narrow linewidth 47 Kuiper belt objects 46 Astrophysical 46 Milky Way 46 Cosmic Origins Spectrograph 46 steering wheel tilts 46 Free Electron Laser 46 reflection nebula 46 backscattering 46 confocal microscopy 46 gamma ray spectrometer 46 Cassini 46 micron wavelength 46 SSRL 46 MPG ESO 46 reionization 46 micron pixel pitch 46 magnetic reconnection 46 ecliptic plane 46 #x# binoculars [001] 46 constellation Eridanus 46 exo planets 46 gamma rays 46 Higgs bosons 46 sized planets orbiting 46 Type Ia supernovae 46 constellation Virgo 46 Composite Infrared Spectrometer 46 Comet Hartley 2 46 electron accelerator 46 Solar Dynamics Observatory 46 photoelectron 46 attoseconds 46 absorption spectroscopy 46 thermal infrared 46 MWIR 46 photon detector 46 Cosmic Origins Spectrograph COS 46 photon beams 46 Helioseismic 46 Multispectral 46 astrophysicists 46 Wilkinson Microwave Probe 46 P/# A2 46 Saturn aurora 46 radar interferometry 46 frequency modulated 46 Telescope BAT 46 gamma ray detectors 46 Dalcanton 46 spectro 46 National Synchrotron Light 46 telescope atop Mauna 46 Large Synoptic Survey 46 EarthCARE 46 Carinae 46 Kepler #b 46 active galactic nucleus 46 Kuiper belt object 46 Chilean Atacama Desert 46 femtosecond 46 Focal Plane 46 Effelsberg 46 constellation Taurus 46 VB #b 46 X ray emitting 46 AMSR E 46 accretion disk 46 Ångström 46 microlenses 46 faraway galaxies 46 TanDEM X 46 GOSAT 46 planets orbiting sun 46 KH #D 46 diffraction 46 DSCS III 46 Gamma ray bursts 46 bolometers 46 geo synchronous 46 celestial sphere 46 Mars Color Imager 46 star Proxima Centauri 46 VLT telescope 46 proton proton collisions 46 proton collisions 46 X ray beam 46 LWIR 46 electron bunches 46 Context Camera 46 Galactic Plane 46 reflectance spectroscopy 46 observatory telescope 46 Hubble Space Telescope 46 brown dwarfs 46 nightglow 46 Solar Terrestrial Relations 46 X ray photons 46 Astrosat 46 Swift Ultraviolet Optical 46 spectroscope 46 photons particles 46 micron wavelengths 46 constellation Cetus 46 spaceborne 46 deformable mirrors 46 Corot 7b 46 wavelength lasers 46 Andromeda Galaxy M# 46 Nasa spacecraft 46 UCO Lick 46 extraterrestrial civilizations 46 Sombrero Galaxy 46 orbited Jupiter 46 STEREO 46 slender crescent 46 orbiter Mars Odyssey 46 gamma rays emitted 46 brightest supernova 46 X ray detector 46 Puppis 46 Heliospheric Investigation 46 tomographic 46 FORCAST 46 WASP #b 46 Observatories 46 parabolic antennas 46 wavebands 46 NMR spectrometer 46 infrared spectrometer 46 NuSTAR 46 correlation spectroscopy 46 XO 3b 46 emitted photons 46 Cepheid variable 46 star Beta Pictoris 46 Werthimer 46 COBE 46 reflectometer 46 OMEGA instrument 46 Observatory SDO 46 GEO# 46 ESO 46 z ~ 46 lidar instrument 46 Aqua satellite 46 constellation Cygnus 46 heterodyne 46 spectroscopic techniques 46 surface plasmons 46 x ray beams 46 Butterfly Nebula 46 ultraviolet wavelength 46 Tarantula Nebula 46 Earth ionosphere 46 wavefront distortion