A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
Ca II EMISSION LINES      (CaIiEmissionLines)
CALCIUM LINES ,
EMISSION LINES ,
METAL LINES 		WILSON BAPPU EFFECT
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CALCIUM LINES      (CalciumLines)
METAL LINES ,
SPECTRAL LINES 		Ca II EMISSION LINES ,
H AND K LINES ,
K LINE 		ABSORPTION LINES
 
CALENDARS      (Calendars)
GREGORIAN CALENDAR ,
JULIAN CALENDAR 		EPHEMERIDES ,
TIME
 
CALIBRATION      (Calibration)
SELF CALIBRATION METHODS INSTRUMENTATION ,
MEASURING INSTRUMENTS ,
RESEAUX
Combine with other terms
 
CAMERA LENSES      (CameraLenses)
LENSES CAMERAS
 
CAMERAS      (Cameras)
OPTICAL INSTRUMENTS ,
PHOTOGRAPHIC INSTRUMENTS 		ALL SKY CAMERAS ,
ASTROGRAPHIC CAMERAS ,
SCHMIDT CAMERAS ,
ULTRAVIOLET CAMERAS 		ALL SKY PHOTOGRAPHY ,
CAMERA LENSES ,
CORONAGRAPHS ,
PHOTOGRAPHS ,
PHOTOGRAPHY ,
ULTRAVIOLET PHOTOGRAPHY ,
WIDE ANGLE LENSES
Photographic types only here.
 
CAPE PHOTOMETRY      (CapePhotometry)
UcBV photometry BROAD BAND PHOTOMETRY ,
PHOTOMETRIC SYSTEMS 		CAPE RI PHOTOMETRY ,
JOHNSON PHOTOMETRY ,
KAPTEYN SELECTED AREAS
 
CAPE RI PHOTOMETRY      (CapeRiPhotometry)
BROAD BAND PHOTOMETRY CAPE PHOTOMETRY ,
JOHNSON PHOTOMETRY
 
CAPTURE      (Capture)
ABSORPTION
Combine with other terms
 
CARBONACEOUS CHONDRITES      (CarbonaceousChondrites)
CHONDRITES
 
CARBON BURNING      (CarbonBurning)
NUCLEAR FUSION ,
NUCLEOSYNTHESIS 		CARBON FLASH ,
GIANT STARS ,
HELIUM BURNING ,
HYDROGEN BURNING ,
NUCLEAR REACTIONS ,
OXYGEN BURNING ,
SHELL BURNING ,
SILICON BURNING ,
STELLAR EVOLUTION ,
STELLAR INTERIORS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CARBON COMPOUNDS      (CarbonCompounds)
INTERSTELLAR MOLECULES CARBON DIOXIDE ,
CARBON DISULFIDE ,
CARBON MONOSULFIDE ,
CARBON MONOXIDE ,
CH ,
CYANOACETYLENE ,
CYANODIACETYLENE ,
CYANOGEN ,
CYANOPOLYYNES
 
CARBON DIOXIDE      (CarbonDioxide)
CARBON COMPOUNDS ,
GASES
 
CARBON DISULFIDE      (CarbonDisulfide)
CARBON COMPOUNDS
 
CARBON FLASH      (CarbonFlash)
carbon detonation CARBON BURNING ,
HELIUM FLASH ,
NUCLEAR FUSION ,
RED GIANT TIP
 
CARBON LINES      (CarbonLines)
c I emission METAL LINES ,
SPECTRAL LINES
 
CARBON MONOSULFIDE      (CarbonMonosulfide)
CARBON COMPOUNDS
 
CARBON MONOXIDE      (CarbonMonoxide)
co CARBON COMPOUNDS ,
GASES 		SWAN BANDS
 
CARBON NITROGEN CYCLE      (CarbonNitrogenCycle)
carbon cycle ,
cno ,
cno cycle 		HYDROGEN BURNING CNO ANOMALIES ,
NUCLEAR FUSION ,
PROTON PROTON REACTION ,
STELLAR INTERIORS
 
CARBON STARS      (CarbonStars)
c stars LATE TYPE GIANT STARS CH STARS ,
CN STARS ,
R STARS ,
S STARS ,
WOLF RAYET STARS
 
CASSEGRAIN ANTENNAS      (CassegrainAntennas)
two reflector antennas ANTENNAS ,
RADIO TELESCOPES 		SECONDARY MIRRORS ,
SUBREFLECTORS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CASSEGRAIN FOCUS      (CassegrainFocus)
cassegrain telescope FOCUS COUDE FOCUS ,
NASMYTH FOCUS ,
NEWTONIAN FOCUS ,
PARABOLIC ANTENNAS ,
PRIME FOCUS ,
SECONDARY MIRRORS ,
SUBREFLECTORS
 
CATACLYSMIC VARIABLE STARS      (CataclysmicVariableStars)
cataclysmic binary stars ,
eruptive stars ,
eruptive variable stars ,
explosive variable stars 		BINARY STARS ,
VARIABLE STARS 		ALPHA2 CANUM VENATICORUM STARS ,
AM CANUM VENATICORUM STARS ,
ERUPTIVE BINARY STARS ,
GAMMA CASSIOPEIAE STARS ,
NOVAS ,
RW AURIGAE STARS ,
SS CYGNI STARS ,
SU URSAE MAJORIS STARS ,
SUPERNOVAS ,
SX ARIETIS STARS ,
SYMBIOTIC STARS ,
U GEMINORUM STARS ,
UU HERCULIS STARS ,
UV PERSEI STARS ,
UX URSAE MAJORIS STARS ,
WZ SAGITTAE STARS ,
X RAY BINARY STARS ,
Z CAMELOPARDALIS STARS 		ERUPTIONS ,
INTERACTING BINARY STARS ,
MASS EXCHANGE ,
MASS LOSS ,
OPTICAL OUTBURSTS
 
CATADIOPTRIC SYSTEMS      (CatadioptricSystems)
BAKER NUNN CAMERAS ,
BOUWERS TELESCOPES ,
MAKSUTOV TELESCOPES ,
SCHMIDT TELESCOPES 		CORRECTOR PLATES ,
FIELD CORRECTORS ,
LENSES ,
MIRRORS ,
OPTICAL TELESCOPES
 
CATALOGS      (Catalogs)
catalogues ASTROGRAPHIC CATALOGS ,
HENRY DRAPER CATALOG ,
RADIO SOURCE CATALOGS 		ATLASES ,
EPHEMERIDES ,
FINDING LISTS ,
FK CATALOG SYSTEM ,
FUNDAMENTAL STARS ,
MAPS ,
NOMENCLATURE ,
SKY SURVEYS ,
SURVEYS ,
ULTRAVIOLET SURVEYS
e.g. RADIO, STAR, X RAY, etc Combine with other terms
 
CATASTROPHE THEORY      (CatastropheTheory)
MATHEMATICAL ANALYSIS
 
CATHODES      (Cathodes)
ELECTRODES PHOTOCATHODES PHOTOMULTIPLIER TUBES ,
QUANTUM EFFICIENCY ,
THERMIONIC EMISSION
 
CATOPTRIC SYSTEMS      (CatoptricSystems)
MIRRORS ,
OPTICAL TELESCOPES
 
CCD      (Ccd)
Acroynm: CHARGE COUPLED DEVICE
 
CCD CAMERAS      (CcdCameras)
 
CCD DETECTORS      (CcdDetectors)
MULTICHANNEL DETECTORS ,
TWO DIMENSIONAL DETECTORS 		CCD OBSERVATIONS ,
CCD PHOTOMETRY ,
CHARGE COUPLED DEVICES ,
PHOTOMETERS ,
TELEVISION DETECTORS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CCD OBSERVATIONS      (CcdObservations)
CCD DETECTORS ,
CCD PHOTOMETRY ,
CHARGE COUPLED DEVICES
 
CCD PHOTOMETRY      (CcdPhotometry)
PHOTOMETRY BROAD BAND PHOTOMETRY ,
MEDIUM BAND PHOTOMETRY ,
NARROW BAND PHOTOMETRY 		CCD DETECTORS ,
CCD OBSERVATIONS ,
CHARGE COUPLED DEVICES ,
PHOTOELECTRIC PHOTOMETRY ,
PHOTOGRAPHIC PHOTOMETRY
 
cD GALAXIES      (cDGalaxies)
D GALAXIES ,
ELLIPTICAL GALAXIES ,
GIANT GALAXIES 		GIANT RADIO GALAXIES ,
MASSIVE GALAXIES ,
NUCLEI [CELESTIAL OBJECTS]
 
CELESTIAL COORDINATES      (CelestialCoordinates)
See under COORDINATE SYSTEMS.
 
CELESTIAL EQUATOR      (CelestialEquator)
CELESTIAL POLES ,
CELESTIAL SPHERE ,
DECLINATION ,
EQUATOR CORRECTION ,
EQUATOR DETERMINATION ,
EQUATOR POSITION ,
EQUATORIAL COORDINATE SYSTEM ,
EQUINOXES ,
OBLIQUITY OF ECLIPTIC ,
RIGHT ASCENSION
 
CELESTIAL MECHANICS      (CelestialMechanics)
ALIGNMENT [PLANETS] ,
ANGULAR VELOCITY ,
ASTRODYNAMICS ,
ASTROMETRY ,
ASTRONOMICAL CONSTANTS ,
GRAVITATION ,
GRAVITATIONAL WAVES ,
KEPLERIAN ORBITS ,
LAGRANGIAN POINTS ,
LUNAR THEORY ,
N BODY PROBLEM ,
ORBITAL ELEMENTS ,
ORBITAL EVOLUTION ,
ORBITAL MOTIONS ,
ORBITAL THEORY ,
ORBITS ,
OSCULATORY ELEMENTS ,
PERTURBATION ,
PERTURBATION THEORY ,
PLANETARY THEORY ,
PRECESSION ,
THREE BODY PROBLEM ,
TWO BODY PROBLEM
 
CELESTIAL POLES      (CelestialPoles)
POLES NORTH CELESTIAL POLE ,
SOUTH CELESTIAL POLE 		CELESTIAL EQUATOR ,
CELESTIAL SPHERE ,
EQUATOR ,
EQUATORIAL COORDINATE SYSTEM ,
POLAR AXIS
 
CELESTIAL SPHERE      (CelestialSphere)
CELESTIAL EQUATOR ,
CELESTIAL POLES ,
HORIZON ,
ZENITH
 
CELSIUS TEMPERATURE SCALE      (CelsiusTemperatureScale)
TEMPERATURE SCALES ABSOLUTE TEMPERATURE SCALE ,
KELVIN ,
TEMPERATURE
 
CENTER      (Center)
Combine with other terms
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CENTER OF MASS      (CenterOfMass)
ORBITAL ELEMENTS BINARY STARS ,
PERICENTER ,
PLANETS
 
CENTRAL STARS      (CentralStars)
PLANETARY NEBULAE
 
CENTRIFUGAL FORCE      (CentrifugalForce)
FORCE CENTRIPETAL FORCE
 
CENTRIPETAL FORCE      (CentripetalForce)
FORCE CENTRIFUGAL FORCE
 
CEPHEIDS      (Cepheids)
bump cepheids ,
cepheid variable stars ,
classical cepheids ,
delta cephei stars 		PULSATING VARIABLE STARS DOUBLE MODE CEPHEIDS ,
YOUNG DISK CEPHEIDS 		BAADE WESSELINK METHOD ,
BL HERCULIS STARS ,
DWARF CEPHEIDS ,
HE+ IONIZATION ZONE ,
INSTABILITY STRIP ,
KAPPA MECHANISM ,
PERIOD AGE RELATION ,
PERIOD COLOR RELATION ,
PERIOD LUMINOSITY COLOR RELATION ,
PERIOD LUMINOSITY RELATION ,
PERIOD RADIUS RELATION ,
PERIOD SPECTRUM RELATION ,
RADIAL PULSATIONS ,
RADIUS LUMINOSITY RELATION ,
RR LYRAE STARS ,
W VIRGINIS STARS
Most commonly used term.
 
CERENKOV COUNTERS      (CerenkovCounters)
cherenkov counters SCINTILLATION COUNTERS CERENKOV RADIATION ,
COSMIC RAYS
American spelling
 
CERENKOV RADIATION      (CerenkovRadiation)
cerenkov effect ELECTROMAGNETIC WAVES ,
RADIATION 		CERENKOV COUNTERS ,
COSMIC RAYS ,
GAMMA RAYS ,
NUCLEAR RADIATION ,
RADIATION MECHANISMS ,
ULTRAVIOLET RADIATION
American spelling
 
CH      (Ch)
CARBON COMPOUNDS ,
HYDROCARBONS ,
INTERSTELLAR MOLECULES
Hydrated carbon
 
CHANDLER WOBBLE      (ChandlerWobble)
polar wandering EARTH ROTATION ,
LATITUDE DETERMINATION ,
LATITUDE VARIATION ,
POLAR MOTION
 
CHANDRASEKHAR LIMIT      (ChandrasekharLimit)
GRAVITATIONAL COLLAPSE ,
MASS ,
MASS RADIUS RELATION ,
WHITE DWARF STARS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CHANDRASEKHAR SCHONBERG LIMIT      (ChandrasekharSchonbergLimit)
schonberg chandrasekhar limit GRAVITATIONAL COLLAPSE ,
HYDROGEN BURNING ,
MASS ,
STELLAR INTERIORS
 
CHARGE COUPLED DEVICES      (ChargeCoupledDevices)
PHOTOELECTRONIC DEVICES ,
SEMICONDUCTOR DEVICES 		CCD DETECTORS ,
CCD OBSERVATIONS ,
CCD PHOTOMETRY ,
DETECTORS ,
MULTICHANNEL DETECTORS ,
QUANTUM EFFICIENCY ,
TWO DIMENSIONAL DETECTORS
Use abbreviated form (CCD) when combined with other terms.
 
CHARGE INJECTION DEVICES      (ChargeInjectionDevices)
cid PHOTOELECTRONIC DEVICES ,
SEMICONDUCTOR DEVICES 		DETECTORS ,
TWO DIMENSIONAL DETECTORS
 
CHARGE TRANSFER DEVICES      (ChargeTransferDevices)
ctd PHOTOELECTRONIC DEVICES ,
SEMICONDUCTOR DEVICES 		DETECTORS ,
TWO DIMENSIONAL DETECTORS
 
CHEMICAL COMPOSITION      (ChemicalComposition)
ABUNDANCE ,
PECULIAR STARS
 
CHEMICAL ELEMENTS      (ChemicalElements)
DEUTERIUM ,
HEAVY ELEMENTS ,
ISOTOPES ,
TRACE ELEMENTS 		ABUNDANCE ,
ATOMS ,
CURVES OF GROWTH ,
ELEMENT FORMATION ,
ORIGIN
See Appendix.
 
CHEMICAL EVOLUTION      (ChemicalEvolution)
ABUNDANCE ,
STELLAR EVOLUTION
 
CHEMILUMINESCENCE      (Chemiluminescence)
LUMINESCENCE LIGHT EMISSION
 
CHEMISTRY      (Chemistry)
COSMOCHEMISTRY
 
CHONDRITES      (Chondrites)
METEORITES ACHONDRITES ,
CARBONACEOUS CHONDRITES ,
CHONDRULES 		AUSTRALITES ,
BEDIASITES ,
MOLDAVITES
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CHONDRULES      (Chondrules)
CHONDRITES
 
CHROMATIC ABERRATION      (ChromaticAberration)
ABERRATIONS ASTIGMATISM ,
COMA ,
DISTORTION ,
FIELD CURVATURE ,
OPTICAL SYSTEMS ,
SPHERICAL ABERRATION
 
CHROMOSPHERE      (Chromosphere)
CORONAL LOOPS ,
FACULAE ,
FIBRILLES ,
FILAMENTS [SOLAR] ,
FLASH SPECTRUM ,
MACRO SPICULES ,
MOTTLES ,
PHOTOSPHERE ,
PLAGES ,
PROMINENCES ,
QUIESCENT PROMINENCES ,
SOLAR ATMOSPHERE ,
SPICULES ,
STELLAR ATMOSPHERES ,
STELLAR WINDS ,
SUN ,
TRANSITION REGION
 
CHRONOMETERS      (Chronometers)
chronograph CLOCKS ,
MEASURING INSTRUMENTS 		TIME
 
CH STARS      (ChStars)
GIANT STARS CARBON STARS
 
C II REGIONS      (CIiRegions)
INTERSTELLAR MATTER DARK CLOUDS
 
CIRCULAR ORBITS      (CircularOrbits)
ELLIPTICAL ORBITS HYPERBOLIC ORBITS ,
ORBITAL MOTIONS ,
PARABOLIC ORBITS
 
CIRCULAR POLARIZATION      (CircularPolarization)
POLARIZATION [WAVES] PLANE POLARIZATION
 
CIRCUMPLANETARY MATTER      (CircumplanetaryMatter)
CIRCUMSTELLAR MATTER
 
CIRCUMSTELLAR DISKS      (CircumstellarDisks)
DISKS ,
ROTATING BODIES 		ACCRETION DISKS ,
CIRCUMSTELLAR GAS ,
CIRCUMSTELLAR MATTER ,
MASS LOSS ,
TORI
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CIRCUMSTELLAR DUST      (CircumstellarDust)
CIRCUMSTELLAR GRAINS ,
CIRCUMSTELLAR MATTER 		CIRCUMSTELLAR GAS ,
COCOON STARS ,
DUST SHELLS ,
R CORONAE BOREALIS STARS
 
CIRCUMSTELLAR ENVELOPES      (CircumstellarEnvelopes)
stellar envelopes EXPANDING ENVELOPES CIRCUMSTELLAR GAS ,
CIRCUMSTELLAR MATTER ,
CIRCUMSTELLAR SHELLS ,
MASS LOSS ,
WOLF RAYET STARS
 
CIRCUMSTELLAR GAS      (CircumstellarGas)
CIRCUMSTELLAR MATTER CIRCUMSTELLAR DISKS ,
CIRCUMSTELLAR DUST ,
CIRCUMSTELLAR ENVELOPES ,
CIRCUMSTELLAR GRAINS ,
CIRCUMSTELLAR SHELLS
 
CIRCUMSTELLAR GRAINS      (CircumstellarGrains)
CIRCUMSTELLAR MATTER CIRCUMSTELLAR DUST CIRCUMSTELLAR GAS ,
R CORONAE BOREALIS STARS
 
CIRCUMSTELLAR MATTER      (CircumstellarMatter)
circumstellar clouds ,
stellar envelopes 		CIRCUMSTELLAR DUST ,
CIRCUMSTELLAR GAS ,
CIRCUMSTELLAR GRAINS 		BIPOLAR OUTFLOWS ,
CIRCUMPLANETARY MATTER ,
CIRCUMSTELLAR DISKS ,
CIRCUMSTELLAR ENVELOPES ,
CIRCUMSTELLAR SHELLS ,
CORONAS ,
EXPANDING ENVELOPES ,
GRAVITATING DISKS ,
INTERPLANETARY MATTER ,
INTERSTELLAR MATTER ,
MASS LOSS
 
CIRCUMSTELLAR SHELLS      (CircumstellarShells)
rotating shells ,
stellar envelopes 		ROTATING BODIES ,
SHELLS 		DUST SHELLS Be STARS ,
CIRCUMSTELLAR ENVELOPES ,
CIRCUMSTELLAR GAS ,
CIRCUMSTELLAR MATTER ,
EXTREME CARBON STARS ,
MASS LOSS ,
SHELL STARS ,
STELLAR WINDS
 
CIVIL TIME      (CivilTime)
TIME EPHEMERIS TIME ,
MEAN SOLAR TIME ,
UNIVERSAL TIME
 
CLASSIFICATION      (Classification)
LUMINOSITY CLASSIFICATION ,
SPECTRAL CLASSIFICATION 		MORPHOLOGY ,
NOMENCLATURE ,
TAXONOMY
Combine with other terms
 
CLEAN METHODS      (CleanMethods)
DATA PROCESSING ,
IMAGE PROCESSING ,
IMAGE RECONSTRUCTION ,
RADIO ASTRONOMY
 
CLOCKS      (Clocks)
MEASURING INSTRUMENTS ,
TIMING EQUIPMENT 		ATOMIC CLOCKS ,
CHRONOMETERS 		TIME ,
TIME STANDARDS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CLOSE BINARY STARS      (CloseBinaryStars)
BINARY STARS AM HERCULIS STARS ,
BETA LYRAE STARS ,
ELLIPSOIDAL VARIABLE STARS ,
SEMIDETACHED BINARY STARS ,
U GEMINORUM STARS ,
Z ANDROMEDAE STARS 		ACCRETION DISKS ,
CONTACT BINARY STARS ,
ROCHE LIMIT ,
ROCHE LOBE ,
SYNCHRONOUS ROTATION ,
TIDAL FRICTION ,
X RAY BRIGHT POINTS
 
CLOSED UNIVERSE      (ClosedUniverse)
COSMOLOGY BIG BANG THEORY ,
OPEN UNIVERSE ,
STEADY STATE THEORY
 
CLOSE ENCOUNTERS      (CloseEncounters)
STELLAR DYNAMICS
 
CLOUDS      (Clouds)
COLLAPSING CLOUDS ,
DUST CLOUDS ,
GAS CLOUDS ,
NOCTILUCENT CLOUDS ,
PLASMA CLOUDS 		EARTH ATMOSPHERE
Combine with other terms
 
CLUMPING      (Clumping)
Combine with other terms
 
CLUSTERING      (Clustering)
CLUSTERS OF GALAXIES ,
STAR CLUSTERS
Combine with other terms
 
CLUSTER ROTATION      (ClusterRotation)
CLUSTERS ,
CLUSTERS OF GALAXIES ,
STAR CLUSTERS
 
CLUSTERS      (Clusters)
CLUSTERS OF GALAXIES ,
PROTOCLUSTERS ,
STAR CLUSTERS 		CLUSTER ROTATION
 
CLUSTERS OF GALAXIES      (ClustersOfGalaxies)
galaxy clustering ,
galaxy clusters 		CLUSTERS ABELL CLUSTERS ,
LOCAL SUPERCLUSTER 		CLUSTER ROTATION ,
CLUSTERING ,
D GALAXIES ,
GALAXY COUNTS ,
GALAXY DISTRIBUTION ,
GALAXY MERGERS ,
GREAT ATTRACTOR ,
INTERGALACTIC MATTER ,
INTRACLUSTER MATTER ,
LUMINOSITY FUNCTION ,
MASSIVE GALAXIES ,
MISSING MASS ,
MULTIPLE GALAXIES ,
PROTOCLUSTERS ,
RELAXATION TIME ,
SUNYAEV ZELDOVICH EFFECT ,
SUPERCLUSTERS ,
VELOCITY DISPERSION ,
VELOCITY DISTRIBUTION ,
VIRIAL THEOREM
 
CNO ANOMALIES      (CnoAnomalies)
ABUNDANCE ,
ABUNDANCE RATIOS ,
CARBON NITROGEN CYCLE ,
METAL ABUNDANCE
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CN STARS      (CnStars)
GIANT STARS CARBON STARS
Carbon-nitrogen stars.
 
COATINGS      (Coatings)
ALUMINUM COATINGS ,
ANTIREFLECTION COATINGS ,
SILVER COATINGS 		LENSES ,
MIRRORS ,
THIN FILMS ,
VAPOR DEPOSITION
Combine with other terms
 
COCOON STARS      (CocoonStars)
INFRARED SOURCES CIRCUMSTELLAR DUST
 
COELOSTATS      (Coelostats)
REFLECTING TELESCOPES HELIOSTATS DRIVES ,
SIDEROSTATS ,
TELESCOPE MOUNTINGS
 
COHERENCE      (Coherence)
LIGHT COHERENCE LASERS ,
MASERS
Combine with other terms
 
COLD DARK MATTER      (ColdDarkMatter)
DARK MATTER BARYONIC DARK MATTER ,
COSMOLOGY
 
COLLAPSE      (Collapse)
GRAVITATIONAL COLLAPSE
Combine with other terms
 
COLLAPSED STARS      (CollapsedStars)
collapsed objects ,
collapsing stars 		BLACK HOLES ,
NEUTRON STARS ,
PULSARS ,
WHITE DWARF STARS 		DEGENERATE STARS ,
STELLAR EVOLUTION
 
COLLAPSING CLOUDS      (CollapsingClouds)
CLOUDS PROTOPLANETARY NEBULAS PROTOCLUSTERS ,
PROTOGALAXIES ,
PROTOSTARS
 
COLLIMATION      (Collimation)
ADJUSTMENT ,
ALIGNMENT [OPTICS] ,
CORRECTIONS ,
OPTICS ,
ORIENTATION
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COLLIMATORS      (Collimators)
BEAM WAVEGUIDES ,
LENSES ,
MIRRORS ,
OPTICAL INSTRUMENTS
 
COLLISIONAL EXCITATION      (CollisionalExcitation)
COLLISION PROCESSES COLLISION BROADENING ,
COLLISION SPECTROSCOPY ,
COLLISION STRENGTHS ,
IONIZED GASES ,
IONS ,
SPECTROSCOPY
 
COLLISIONAL PLASMAS      (CollisionalPlasmas)
PLASMAS COLLISION PROCESSES ,
IONS ,
SHOCKS
 
COLLISION BROADENING      (CollisionBroadening)
COLLISION PROCESSES ,
LINE BROADENING 		COLLISION SPECTROSCOPY ,
COLLISION STRENGTHS ,
COLLISIONAL EXCITATION ,
SPECTROSCOPIC ANALYSIS
 
COLLISION PROCESSES      (CollisionProcesses)
COLLISION BROADENING ,
COLLISIONAL EXCITATION 		COLLISION STRENGTHS ,
COLLISIONAL PLASMAS
 
COLLISIONS      (Collisions)
GALAXIES ,
METEORITES ,
PLANETS
Combine with other terms
 
COLLISION SPECTROSCOPY      (CollisionSpectroscopy)
SPECTROSCOPY COLLISION BROADENING ,
COLLISION STRENGTHS ,
COLLISIONAL EXCITATION
 
COLLISION STRENGTHS      (CollisionStrengths)
COLLISION BROADENING ,
COLLISION PROCESSES ,
COLLISION SPECTROSCOPY ,
COLLISIONAL EXCITATION
 
COLOR      (Color)
OPTICAL PROPERTIES COLOR EQUATION ,
COLOR EXCESSES ,
COLOR LUMINOSITY RELATION ,
COLOR MAGNITUDE RELATION ,
COLOR PHOTOGRAPHY ,
COLOR REDSHIFT RELATION ,
COLORIMETRY ,
LIGHT ,
PHOTOMETRY ,
SPECTROPHOTOMETRY ,
TEMPERATURE
 
COLOR EQUATION      (ColorEquation)
COLOR ,
PHOTOMETRY
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COLOR EXCESSES      (ColorExcesses)
COLOR ,
INTERSTELLAR REDDENING ,
PHOTOMETRY
 
COLORIMETRY      (Colorimetry)
COLOR
 
COLOR INDICES      (ColorIndices)
INTRINSIC COLORS ,
PHOTOMETRY ,
TWO COLOR DIAGRAMS
 
COLOR LUMINOSITY RELATION      (ColorLuminosityRelation)
COLOR ,
HERTZSPRUNG RUSSELL DIAGRAM ,
PHOTOMETRY
 
COLOR MAGNITUDE RELATION      (ColorMagnitudeRelation)
c m diagrams ,
c m relation 		COLOR ,
HERTZSPRUNG RUSSELL DIAGRAM ,
PHOTOMETRY
 
COLOR PHOTOGRAPHY      (ColorPhotography)
PHOTOGRAPHY COLOR
 
COLOR REDSHIFT RELATION      (ColorRedshiftRelation)
COLOR ,
COSMOLOGY ,
OBSERVATIONAL COSMOLOGY
 
COLOR VISION      (ColorVision)
VISION DARK ADAPTION
 
COMA      (Coma)
ABERRATIONS ASTIGMATISM ,
CHROMATIC ABERRATION ,
DISTORTION ,
FIELD CURVATURE ,
OPTICAL SYSTEMS ,
SPHERICAL ABERRATION
 
COMAS      (Comas)
COMETS ,
GALAXIES
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COMETS      (Comets)
APERIODIC COMETS ,
KREUTZ SUNGRAZERS ,
LONG PERIOD COMETS ,
PERIODIC COMETS 		COMAS ,
DIRTY SNOWBALL THEORY ,
DUST ,
ENVELOPES ,
HALOS ,
INTERPLANETARY MATTER ,
JETS ,
METEOR STREAMS ,
METEORITES ,
METEOROID DUST CLOUD ,
METEOROIDS ,
NUCLEI [CELESTIAL OBJECTS] ,
OORT CLOUD ,
PARABOLIC ORBITS ,
SOLAR SYSTEM ,
STREAMERS ,
TAILS
Named comets not included.
 
COMPACT GALAXIES      (CompactGalaxies)
PECULIAR GALAXIES ACTIVE GALAXIES ,
BL LACERTAE OBJECTS ,
N GALAXIES ,
QUASARS
 
COMPACT H II REGIONS      (CompactHIiRegions)
H II REGIONS
 
COMPACT NEBULAE      (CompactNebulae)
NEBULAE
 
COMPACT NUCLEI      (CompactNuclei)
GALACTIC NUCLEI ,
NUCLEI [CELESTIAL OBJECTS] 		SEYFERT NUCLEI ACTIVE GALACTIC NUCLEI ,
COMPACT SOURCES ,
SEYFERT GALAXIES
 
COMPACT OBJECTS      (CompactObjects)
BL LACERTAE OBJECTS ,
BLACK HOLES ,
COMPACT SOURCES ,
NEUTRON STARS ,
WHITE DWARF STARS
 
COMPACT SOURCES      (CompactSources)
COMPACT OBJECTS ,
RADIO SOURCES 		COMPACT NUCLEI ,
RADIO STRUCTURE
 
COMPANION GALAXIES      (CompanionGalaxies)
GALAXIES DOUBLE GALAXIES ,
GROUPS OF GALAXIES
 
COMPANION STARS      (CompanionStars)
BINARY STARS ,
MULTIPLE STARS
 
COMPARISON      (Comparison)
Combine with other terms
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COMPARISON STARS      (ComparisonStars)
STANDARD STARS ,
VARIABLE STARS
 
COMPONENTS      (Components)
Combine with other terms
 
COMPOSITE PARTICLES      (CompositeParticles)
BOSONS ALPHA PARTICLES ,
IONS ,
RADICALS
 
COMPOSITION      (Composition)
PLANETS
Combine with other terms
 
COMPTON EFFECT      (ComptonEffect)
ELECTRONS ,
RADIATION SCATTERING ,
X RAY SCATTERING
 
COMPTON SCATTERING      (ComptonScattering)
LIGHT SCATTERING ,
RADIATION SCATTERING ,
SCATTERING 		THOMSON SCATTERING ELECTRONS ,
INVERSE COMPTON SCATTERING ,
RAYLEIGH SCATTERING
 
COMPUTER APPLICATIONS      (ComputerApplications)
COMPUTER SIMULATIONS
 
COMPUTER MODELS      (ComputerModels)
mathematical models MODELS COMPUTER PROGRAMS ,
COMPUTER SIMULATIONS ,
NUMERICAL SIMULATION
 
COMPUTER PROGRAMS      (ComputerPrograms)
COMPUTER MODELS ,
COMPUTER SIMULATIONS ,
DATA PROCESSING
 
COMPUTERS      (Computers)
MICROPROCESSORS CONTROL SYSTEMS ,
DATA CENTERS ,
DATA PROCESSING ,
DATA REDUCTION ,
DATA STORAGE ,
NEW TECHNOLOGY TELESCOPES ,
PERIPHERALS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COMPUTER SIMULATIONS      (ComputerSimulations)
computerized simulations COMPUTER APPLICATIONS ,
SIMULATION 		COMPUTER MODELS ,
COMPUTER PROGRAMS
 
COMPUTING      (Computing)
Combine with other terms
 
CONDENSATION      (Condensation)
Combine with other terms
 
CONDUCTION      (Conduction)
ENERGY TRANSFER ,
THERMAL CONDUCTIVITY
Combine with other terms
 
CONJUNCTION      (Conjunction)
OPPOSITION ,
QUADRATURE ,
SYNODIC PERIOD ,
SYZYGY
Refers to planet positions.
 
CONSTANTS      (Constants)
ASTRONOMICAL CONSTANTS ,
COSMOLOGICAL CONSTANT ,
GRAVITATIONAL CONSTANT
 
CONSTELLATIONS      (Constellations)
ASTROLOGY ,
ZODIAC
See Appendix.
 
CONTACT BINARY STARS      (ContactBinaryStars)
BINARY STARS BETA LYRAE STARS ,
ELLIPSOIDAL VARIABLE STARS 		CLOSE BINARY STARS ,
ECLIPSING BINARY STARS ,
EQUIPOTENTIAL SURFACES ,
MASS EXCHANGE
 
CONTENT OF GALAXIES      (ContentOfGalaxies)
GALAXIES ,
INTERSTELLAR MATTER
 
CONTINENTAL DRIFT      (ContinentalDrift)
CONTINENTS ,
GEOMAGNETISM ,
GEOPHYSICS ,
PALEOMAGNETISM
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CONTINENTS      (Continents)
CONTINENTAL DRIFT ,
EARTH
 
CONTINUA      (Continua)
CONTINUUM RADIATION ,
SPECTRA
Combine with other terms
 
CONTINUOUS SPECTRA      (ContinuousSpectra)
SPECTRA LIGHT EMISSION ,
SPECTROSCOPIC ANALYSIS ,
SPECTROSCOPY ,
VISIBLE SPECTRUM
 
CONTINUUM RADIATION      (ContinuumRadiation)
RADIATION ULTRAVIOLET CONTINUUM ,
X RAY CONTINUUM 		CONTINUA ,
PHOTOSPHERE
 
CONTOUR MAPS      (ContourMaps)
MAPS ISOPHOTES ,
RADIO STRUCTURE
 
CONTRACTION      (Contraction)
Combine with other terms
 
CONTRAST      (Contrast)
Combine with other terms
 
CONTROL SYSTEMS      (ControlSystems)
AUTOGUIDERS ,
REMOTE CONTROL SYSTEMS 		COMPUTERS ,
DRIVES ,
GUIDE SYSTEMS ,
MICROPROCESSORS ,
NEW TECHNOLOGY TELESCOPES ,
POINTING ACCURACY ,
POINTING ERRORS ,
QUADRANT DETECTORS ,
TELESCOPE INSTRUMENTATION ,
TELESCOPES ,
TRACKING
 
CONVECTION      (Convection)
CONVECTIVE ENVELOPES ,
CONVECTIVE SHELLS ,
CONVECTIVE ZONES ,
DREDGE UP ,
ENERGY TRANSFER ,
ENVELOPES ,
GRANULATION ,
HAYASHI TRACK ,
LINE BROADENING ,
MASS TRANSFER ,
RAYLEIGH NUMBER ,
THERMAL INSTABILITY ,
THERMAL STRUCTURE ,
TURBULENCE [EARTH ATMOSPHERE] ,
TURBULENCE [STAR ATMOSPHERE]
 
CONVECTIVE ENVELOPES      (ConvectiveEnvelopes)
CONVECTION
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CONVECTIVE SHELLS      (ConvectiveShells)
SHELLS CONVECTION
 
CONVECTIVE ZONES      (ConvectiveZones)
CONVECTION
 
COOLING      (Cooling)
Combine with other terms
 
COOLING FLOWS      (CoolingFlows)
ACCRETION DISKS ,
GALAXIES ,
STAR FORMATION
 
COORDINATE SYSTEMS      (CoordinateSystems)
ECLIPTIC COORDINATE SYSTEM ,
EQUATORIAL COORDINATE SYSTEM ,
GALACTIC COORDINATE SYSTEM ,
HORIZON COORDINATE SYSTEM 		ABERRATION ,
ASTROMETRY ,
HELIOCENTRIC CORRECTION ,
POSITIONS ,
REFERENCE FRAMES ,
REFERENCE SYSTEMS ,
SPHERICAL COORDINATES ,
TRUE POSITIONS
Planet and satellite surface coordinates not included.
 
CORES      (Cores)
EARTH ,
PLANETS ,
STELLAR INTERIORS
Combine with other terms
 
CORONAGRAPHS      (Coronagraphs)
INSTRUMENTATION ,
OPTICAL INSTRUMENTS 		CAMERAS ,
SOLAR CORONA ,
SOLAR OBSERVATORIES ,
SPECTROHELIOGRAPHS
 
CORONAL HOLES      (CoronalHoles)
CORONAS SOLAR CORONA ,
SOLAR WIND
 
CORONAL LINES      (CoronalLines)
CORONAS ,
EMISSION LINES 		SOLAR CORONA
 
CORONAL LOOPS      (CoronalLoops)
CORONAS CHROMOSPHERE ,
SOLAR ACTIVITY ,
SOLAR CORONA
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CORONAL MASS EJECTIONS      (CoronalMassEjections)
CORPUSCULAR EMISSIONS ,
MASS LOSS ,
SOLAR CORONA
 
CORONAL PLUMES      (CoronalPlumes)
CORONAS SOLAR CORONA
 
CORONAL TRANSIENTS      (CoronalTransients)
SOLAR CORONA
 
CORONAS      (Coronas)
CORONAL HOLES ,
CORONAL LINES ,
CORONAL LOOPS ,
CORONAL PLUMES ,
E CORONA ,
F CORONA ,
K CORONA ,
SOLAR CORONA 		CIRCUMSTELLAR MATTER ,
HALOS ,
IONIZATION ,
MASS LOSS ,
STELLAR ATMOSPHERES
 
CORPUSCULAR EMISSIONS      (CorpuscularEmissions)
CORONAL MASS EJECTIONS
 
CORRECTIONS      (Corrections)
ADJUSTMENT ,
ALIGNMENT [OPTICS] ,
COLLIMATION ,
ERRORS ,
SELECTION EFFECTS
Combine with other terms
 
CORRECTOR PLATES      (CorrectorPlates)
LENSES ,
OPTICAL COMPONENTS 		CATADIOPTRIC SYSTEMS ,
FIELD CORRECTORS ,
SCHMIDT CAMERAS ,
SCHMIDT TELESCOPES
 
CORRELATION      (Correlation)
CROSS CORRELATION INTERFEROMETRY ,
RECEIVERS
Combine with other terms
 
COSMIC      (Cosmic)
Combine with other terms
 
COSMIC ABUNDANCE      (CosmicAbundance)
ABUNDANCE COSMOLOGY
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COSMIC ELECTRODYNAMICS      (CosmicElectrodynamics)
ELECTRODYNAMICS ,
ELECTROMAGNETIC THEORY 		MAGNETOHYDRODYNAMICS
 
COSMIC NOISE      (CosmicNoise)
NOISE ,
RADIO INTERFERENCE 		MICROWAVE BACKGROUND BACKGROUND NOISE ,
BACKGROUND RADIATION ,
MICROWAVE EMISSION ,
RADIO BACKGROUND
 
COSMIC RAY ASTRONOMY      (CosmicRayAstronomy)
BALLOON BORNE INSTRUMENTS ,
HIGH ENERGY ASTROPHYSICS ,
ROCKET BORNE INSTRUMENTS ,
SATELLITE BORNE INSTRUMENTS
 
COSMIC RAYS      (CosmicRays)
cosmic radiation ,
galactic cosmic rays ,
primary cosmic rays 		BACKGROUND RADIATION ,
HIGH ENERGY RADIATION ,
RADIATION 		CERENKOV COUNTERS ,
CERENKOV RADIATION ,
COSMIC RAY SHOWERS ,
COSMIC RAY SOURCES ,
FORBUSH EFFECT ,
INVERSE COMPTON EFFECT ,
SECONDARY COSMIC RAYS
 
COSMIC RAY SHOWERS      (CosmicRayShowers)
air showers ,
auger showers ,
cascade showers 		COSMIC RAYS ,
PHOSPHORESCENT SCINTILLATION ,
SECONDARY COSMIC RAYS
 
COSMIC RAY SOURCES      (CosmicRaySources)
COSMIC RAYS
 
COSMIC STRINGS      (CosmicStrings)
strings COSMOLOGY ,
INTERGALACTIC MATTER ,
INTERSTELLAR MATTER ,
LARGE SCALE STRUCTURE
 
COSMIC YEAR      (CosmicYear)
YEAR GALACTIC ROTATION
 
COSMOCHEMISTRY      (Cosmochemistry)
astrochemistry ,
cosmic chemistry 		CHEMISTRY COSMOLOGY ,
EXOBIOLOGY ,
EXTRATERRESTRIAL MATTER ,
INTERSTELLAR MOLECULES ,
MOLECULAR ASTROPHYSICS
 
COSMOGONY      (Cosmogony)
ASTRONOMY RELATIVITY COSMOLOGY ,
PROTOCLUSTERS ,
PROTOGALAXIES ,
PROTOPLANETARY NEBULAS ,
UNIVERSE
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
COSMOLOGICAL CONSTANT      (CosmologicalConstant)
CONSTANTS COSMOLOGICAL DISTANCE SCALE ,
COSMOLOGY
 
COSMOLOGICAL DISTANCE SCALE      (CosmologicalDistanceScale)
DISTANCE SCALE COSMOLOGICAL CONSTANT ,
DECELERATION PARAMETER ,
HUBBLE CONSTANT ,
OBSERVATIONAL COSMOLOGY ,
REDSHIFT ,
REDSHIFT DISTANCE RELATION ,
REDSHIFT MAGNITUDE RELATION
 
COSMOLOGICAL MODELS      (CosmologicalModels)
See under COSMOLOGY
 
COSMOLOGY      (Cosmology)
ASTRONOMY BIANCHI COSMOLOGY ,
BIG BANG THEORY ,
CLOSED UNIVERSE ,
DE SITTER UNIVERSE ,
DIRAC COSMOLOGY ,
EINSTEIN UNIVERSE ,
EXPANDING UNIVERSE ,
FRIEDMANN UNIVERSE ,
GOEDEL UNIVERSE ,
HIERARCHICAL COSMOLOGY ,
INFLATIONARY UNIVERSE ,
LEMAITRE UNIVERSE ,
OPEN UNIVERSE ,
OSCILLATING UNIVERSE ,
PRIMORDIAL FIREBALL ,
QUANTUM COSMOLOGY ,
RELATIVISTIC COSMOLOGY ,
STEADY STATE THEORY 		ANTHROPIC PRINCIPLE ,
ASTROPHYSICS ,
COLD DARK MATTER ,
COLOR REDSHIFT RELATION ,
COSMIC ABUNDANCE ,
COSMIC STRINGS ,
COSMOCHEMISTRY ,
COSMOGONY ,
COSMOLOGICAL CONSTANT ,
CURVATURE OF SPACE TIME ,
DARK MATTER ,
EARLY UNIVERSE ,
GALAXY COUNTS ,
GALAXY DISTRIBUTION ,
GALAXY EVOLUTION ,
GENERAL THEORY OF RELATIVITY ,
HUBBLE CONSTANT ,
HUBBLE DIAGRAM ,
HUBBLE LAW ,
HUBBLE RADIUS ,
HUBBLE TIME ,
MISSING MASS ,
PROTOCLUSTERS ,
PROTOGALAXIES ,
REDSHIFT ,
REDSHIFT DISTANCE RELATION ,
REDSHIFT MAGNITUDE RELATION ,
RELATIVISTIC ASTROPHYSICS ,
RELATIVISTIC VELOCITY ,
STELLAR EVOLUTION ,
TULLY FISHER RELATION ,
UNIVERSE ,
WHITE HOLES
 
COUDE FOCUS      (CoudeFocus)
FOCUS CASSEGRAIN FOCUS ,
NASMYTH FOCUS ,
NEWTONIAN FOCUS ,
PRIME FOCUS
 
COUDE SPECTRA      (CoudeSpectra)
HIGH RESOLUTION SPECTRA ECHELLE SPECTROGRAPHS
 
COUDE SPECTROGRAPHS      (CoudeSpectrographs)
SPECTROGRAPHS HIGH RESOLUTION SPECTRA ,
HIGH RESOLUTION SPECTROSOPY
 
COUNTERS      (Counters)
counts MEASURING INSTRUMENTS SCINTILLATION COUNTERS COUNTING ,
DATA ACQUISITION ,
PHOTON COUNTING SYSTEMS
 
COUNTING      (Counting)
counts COUNTERS ,
DATA ACQUISITION
 
COUPLING      (Coupling)
Combine with other terms
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CRATERS      (Craters)
IMPACT CRATERS BASINS ,
EARTH ,
EJECTA ,
METEORS ,
MOON ,
PLANETS ,
VOLCANOES
Combine with other terms
 
CROSS CORRELATION      (CrossCorrelation)
CORRELATION DATA PROCESSING
 
CRUST      (Crust)
CRUSTAL DYNAMICS ,
EARTH ,
MANTLES ,
MOON ,
PLANETS
Combine with other terms
 
CRUSTAL DYNAMICS      (CrustalDynamics)
CRUST ,
MANTLES ,
MOON
 
CRYOGENICS      (Cryogenics)
CRYOSTATS ,
OUTGASSING ,
TEMPERATURE CONTROL
 
CRYOSTATS      (Cryostats)
CRYOGENICS ,
TEMPERATURE CONTROL
 
CURRENTS      (Currents)
ANTENNAS ,
CURRENT SHEETS ,
ELECTRIC CURRENTS
Combine with other terms
 
CURRENT SHEETS      (CurrentSheets)
ANTENNAS ,
CURRENTS ,
ELECTRIC CURRENTS
 
CURVATURE OF SPACE TIME      (CurvatureOfSpaceTime)
COSMOLOGY ,
GENERAL THEORY OF RELATIVITY
 
CURVES OF GROWTH      (CurvesOfGrowth)
ABUNDANCE ,
CHEMICAL ELEMENTS
 
  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Descriptionaltbroadernarrowerrelated
CYANOACETYLENE      (Cyanoacetylene)
CARBON COMPOUNDS
 
CYANODIACETYLENE      (Cyanodiacetylene)
CARBON COMPOUNDS
 
CYANOGEN      (Cyanogen)
cn CARBON COMPOUNDS
 
CYANOGEN LINES      (CyanogenLines)
ABSORPTION LINES
 
CYANOPOLYYNES      (Cyanopolyynes)
CARBON COMPOUNDS
 
CYCLE      (Cycle)
PERIOD
 
CYCLOTRON RADIATION      (CyclotronRadiation)
RADIATION ,
SYNCHROTRON RADIATION 		RADIATION MECHANISMS
 
Thu Jul 3 15:11:37 2008