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
LAGRANGIAN POINTS      (LagrangianPoints)
libration points CELESTIAL MECHANICS ,
GRAVITATION ,
GRAVITATIONAL FIELDS
 
LAMBDA ERIDANI STARS      (LambdaEridaniStars)
Be STARS ,
PULSATING VARIABLE STARS
 
LARGE MAGELLANIC CLOUD      (LargeMagellanicCloud)
lmc MAGELLANIC CLOUDS SMALL MAGELLANIC CLOUD
 
LARGE SCALE STRUCTURE      (LargeScaleStructure)
COSMIC STRINGS ,
UNIVERSE
 
LASER RANGING      (LaserRanging)
LUNAR LASER RANGING ,
SATELLITE LASER RANGING 		OPTICAL RADAR
 
LASERS      (Lasers)
COHERENCE ,
ELECTRON PUMPING ,
LIGHT COHERENCE ,
LUNAR LASER RANGING ,
MASERS ,
OPTICAL RADAR ,
POPULATION INVERSION ,
SATELLITE LASER RANGING ,
STIMULATED EMISSION
 
  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
LATE TYPE DWARF STARS      (LateTypeDwarfStars)
cool dwarf stars DWARF STARS ,
LATE TYPE STARS ,
LOW LUMINOSITY STARS 		K DWARF STARS ,
M DWARF STARS ,
RED DWARF FLARE STARS
 
LATE TYPE GALAXIES      (LateTypeGalaxies)
GALAXIES SPIRAL GALAXIES
 
LATE TYPE GIANT STARS      (LateTypeGiantStars)
cool giant stars GIANT STARS ,
LATE TYPE STARS 		CARBON STARS ,
HEAVY METAL STARS ,
IRREGULAR VARIABLE STARS ,
K GIANT STARS ,
M GIANT STARS ,
MIRA VARIABLE STARS ,
SEMIREGULAR VARIABLE STARS 		ASYMPTOTIC GIANT BRANCH ,
FUNNELING ,
RED GIANT TIP
 
LATE TYPE STARS      (LateTypeStars)
cool stars K STARS ,
LATE TYPE DWARF STARS ,
LATE TYPE GIANT STARS ,
LATE TYPE SUBDWARF STARS ,
LATE TYPE SUPERGIANT STARS ,
M STARS ,
N STARS ,
R STARS ,
S STARS 		MOLECULAR BANDS ,
MOLECULAR LINES ,
MOLECULAR SPECTRA ,
WILSON BAPPU EFFECT
 
LATE TYPE SUBDWARF STARS      (LateTypeSubdwarfStars)
cool subdwarf stars LATE TYPE STARS ,
LOW LUMINOSITY STARS
 
LATE TYPE SUPERGIANT STARS      (LateTypeSupergiantStars)
cool supergiant stars LATE TYPE STARS ,
SUPERGIANT STARS 		K SUPERGIANT STARS ,
M SUPERGIANT STARS ,
RV TAURI STARS 		IRREGULAR VARIABLE STARS ,
LONG PERIOD VARIABLE STARS
 
LATE TYPE VARIABLE STARS      (LateTypeVariableStars)
Me VARIABLE STARS Me STARS
 
LATITUDE      (Latitude)
On earth surface.
 
LATITUDE DETERMINATION      (LatitudeDetermination)
LATITUDE VARIATION ASTROMETRY ,
CHANDLER WOBBLE
On earth surface.
 
LATITUDE VARIATION      (LatitudeVariation)
LATITUDE DETERMINATION CHANDLER WOBBLE ,
POLAR MOTION
On earth surface.
 
  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
Lb VARIABLE STARS      (LbVariableStars)
GIANT STARS
 
Lc VARIABLE STARS      (LcVariableStars)
SUPERGIANT STARS
 
LEMAITRE UNIVERSE      (LemaitreUniverse)
COSMOLOGY BIG BANG THEORY
 
LENS ANTENNAS      (LensAntennas)
ANTENNAS
 
LENS DESIGN      (LensDesign)
LENSES
 
LENSES      (Lenses)
OPTICAL COMPONENTS CAMERA LENSES ,
CORRECTOR PLATES ,
FIELD CORRECTORS ,
PRIMARY LENSES 		ABERRATIONS ,
ANTIREFLECTION COATINGS ,
CATADIOPTRIC SYSTEMS ,
COATINGS ,
COLLIMATORS ,
DIOPTRIC SYSTEMS ,
EYEPIECES ,
FIGURING ,
GLASS ,
LENS DESIGN ,
OPTICAL INSTRUMENTS ,
OPTICAL MATERIALS ,
POLISHING ,
REFRACTION ,
REFRACTIVE INDEX ,
SURFACES [OPTICAL]
 
LENTICULAR GALAXIES      (LenticularGalaxies)
S0 galaxies GALAXIES ANSAE
 
LEPTONS      (Leptons)
ELEMENTARY PARTICLES ,
PARTICLES 		ELECTRONS ,
MUONS ,
NEUTRINOS ,
POSITRONS 		BOSONS ,
QUARKS
 
LIBRATION      (Libration)
physical libration MOON
 
LIFE      (Life)
ANTHROPIC PRINCIPLE ,
EXTRATERRESTRIAL LIFE ,
ORIGIN
 
  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
LIGHT      (Light)
ELECTROMAGNETIC WAVES POLARIZED LIGHT COLOR ,
DARKNESS ,
GRAVITATIONAL LENSES ,
LIGHT ABSORPTION ,
LIGHT INTERFERENCE ,
LIGHT SCATTERING ,
LUMINESCENCE ,
REFRACTION ,
VISIBLE RADIATION ,
VISIBLE SPECTRUM
Combine with other terms Synonym: VISIBLE RADIATION.
 
LIGHT ABSORPTION      (LightAbsorption)
ABSORPTION ATMOSPHERIC EXTINCTION ,
INTERSTELLAR ABSORPTION ,
INTERSTELLAR REDDENING ,
LIGHT ,
LIGHT SCATTERING
 
LIGHT COHERENCE      (LightCoherence)
COHERENCE LASERS
 
LIGHT CONE      (LightCone)
FUTURE LIGHT CONE ,
PAST LIGHT CONE 		VELOCITY OF LIGHT
 
LIGHT CURVES      (LightCurves)
PHOTOMETRIC ELEMENTS MAGNITUDES ,
MAXIMA ,
MINIMA ,
PERIOD ,
PHASE SHIFT ,
PHASE [WAVE] ,
VARIABLE STARS ,
VELOCITY CURVES
 
LIGHT EMISSION      (LightEmission)
PHOTOLUMINESCENCE AURORAS ,
CHEMILUMINESCENCE ,
CONTINUOUS SPECTRA ,
EMISSION SPECTRA ,
LUMINESCENCE
 
LIGHT INTERFERENCE      (LightInterference)
INTERFERENCE [WAVES] LIGHT ,
OPTICAL FILMS ,
OPTICAL FILTERS ,
OPTICAL INTERFEROMETRY
 
LIGHT POLLUTION      (LightPollution)
POLLUTION AIR POLLUTION ,
SITE PROTECTION
 
LIGHT SCATTERING      (LightScattering)
RADIATION SCATTERING ,
SCATTERING 		COMPTON SCATTERING ,
RAYLEIGH SCATTERING ,
THOMSON SCATTERING 		AFTERGLOW ,
ATMOSPHERIC EXTINCTION ,
BRILLOUIN SPECTRA ,
HALOS ,
INTERSTELLAR REDDENING ,
LIGHT ,
LIGHT ABSORPTION ,
LUMINESCENCE ,
RAMAN SPECTRA ,
ZODIACAL LIGHT
 
LIGHT YEAR      (LightYear)
DISTANCE ,
PARSEC ,
VELOCITY OF LIGHT ,
YEAR
 
  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
LIMB BRIGHTENING      (LimbBrightening)
ATMOSPHERES ,
LIMB DARKENING ,
STELLAR ATMOSPHERES ,
TEMPERATURE
 
LIMB DARKENING      (LimbDarkening)
ATMOSPHERES ,
LIMB BRIGHTENING ,
SOLAR ATMOSPHERE ,
STELLAR ATMOSPHERES ,
TEMPERATURE
 
LIMITING MAGNITUDES      (LimitingMagnitudes)
DETECTORS ,
PRECISION ,
SENSITIVITY ,
SIGNAL DETECTION ,
SIGNAL TO NOISE RATIO
 
LINE BLANKETING      (LineBlanketing)
METAL LINES ,
SPECTRAL LINES ,
ULTRAVIOLET RADIATION
 
LINE BLENDING      (LineBlending)
SPECTRAL LINES ,
SPECTRAL RESOLUTION
 
LINE BLOCKING      (LineBlocking)
See under LINE BLANKETING.
 
LINE BROADENING      (LineBroadening)
spectral line broadening COLLISION BROADENING ,
DOPPLER BROADENING ,
NATURAL LINE BROADENING ,
PRESSURE BROADENING ,
STARK BROADENING 		CONVECTION ,
EQUIVALENT WIDTHS ,
INSTRUMENTAL PROFILES ,
LINE FORMATION ,
LINE WIDTHS ,
NATURAL LINE WIDTH ,
SPECTRAL LINES ,
STELLAR ATMOSPHERES ,
TURBULENCE [STAR ATMOSPHERE] ,
ZEEMAN SPLITTING
 
LINE FORMATION      (LineFormation)
spectral line formation ABSORPTION LINES ,
DAMPING CONSTANTS ,
EMISSION LINES ,
LINE BROADENING ,
OSCILLATOR STRENGTHS ,
SOLAR ATMOSPHERE ,
SPECTRAL LINES ,
STELLAR ATMOSPHERES ,
TRANSITION PROBABILITIES
 
LINE IDENTIFICATIONS      (LineIdentifications)
ABSORPTION LINES ,
EMISSION LINES ,
SPECTRAL LINES
 
LINE INTENSITITES      (LineIntensitites)
EMISSION LINES ,
SPECTRAL LINES
 
  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
LINE PROFILES      (LineProfiles)
profiles INSTRUMENTAL PROFILES ,
P CYGNI LINE PROFILES 		ABSORPTION LINES ,
EMISSION LINES ,
RESIDUAL INTENSITY ,
SPECTRAL LINES
 
LINE RATIOS      (LineRatios)
ABSORPTION LINES ,
EMISSION LINES ,
SPECTRAL LINES
 
LINE SHIFT      (LineShift)
spectral line shift BLUE SHIFT ,
REDSHIFT 		DOPPLER EFFECT ,
RADIAL VELOCITY ,
ZEEMAN SPLITTING
 
LINE SPECTRA      (LineSpectra)
ABSORPTION SPECTRA ,
EMISSION SPECTRA 		PRESSURE BROADENING ,
ULTRAVIOLET LINES ,
VOIGT PROFILES
 
LINE WIDTHS      (LineWidths)
spectral line widths EQUIVALENT WIDTHS ,
NATURAL LINE WIDTH 		DOPPLER BROADENING ,
INSTRUMENTAL PROFILES ,
LINE BROADENING ,
MILNE EDDINGTON APPROXIMATION ,
OSCILLATOR STRENGTHS ,
SPECTRAL TYPES ,
STELLAR ATMOSPHERES ,
SURFACE GRAVITY ,
TRANSITION PROBABILITIES ,
TULLY FISHER RELATION
 
LITHIUM POOR STARS      (LithiumPoorStars)
METAL POOR STARS
 
LITHIUM STARS      (LithiumStars)
Li stars ,
lithium rich stars 		GIANT STARS
 
LITHOSPHERES      (Lithospheres)
MANTLES ,
PLANETS
 
L MAGNITUDE      (LMagnitude)
APPARENT MAGNITUDES INFRARED PHOTOMETRY ,
NEAR INFRARED RADIATION
 
LOBES      (Lobes)
RADIO STRUCTURE RADIO SOURCES
Radio source features.
 
  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
LOCAL GROUP OF GALAXIES      (LocalGroupOfGalaxies)
GROUPS OF GALAXIES ,
NEARBY GALAXIES 		MAGELLANIC CLOUDS ,
MILKY WAY GALAXY 		BRIGHT GALAXIES
 
LOCAL STANDARD OF REST      (LocalStandardOfRest)
lsr ORBITS ,
PECULIAR MOTIONS ,
PECULIAR VELOCITY ,
PROPER MOTIONS ,
STELLAR MOTIONS ,
SUN
 
LOCAL SUPERCLUSTER      (LocalSupercluster)
CLUSTERS OF GALAXIES GALAXIES ,
GREAT ATTRACTOR
 
LOCAL THERMODYNAMIC EQUILIBRIUM      (LocalThermodynamicEquilibrium)
lte THERMODYNAMIC EQUILIBRIUM NONLTE TRANSFER ,
THERMAL EQUILIBRIUM ,
THERMAL INSTABILITY ,
THERMAL STABILITY ,
THERMODYNAMICS
 
LONG BASELINE INTERFEROMETERS      (LongBaselineInterferometers)
INTERFEROMETERS ,
RADIO INTERFEROMETERS 		OPTICAL INTERFEROMETERS ,
VERY LONG BASELINE INTERFEROMETERS
 
LONG BASELINE INTERFEROMETRY      (LongBaselineInterferometry)
INTERFEROMETRY ,
RADIO INTERFEROMETRY 		OPTICAL INTERFEROMETRY ,
RADIO ASTROMETRY ,
VERY LONG BASELINE INTERFEROMETRY
 
LONGITUDE      (Longitude)
On earth surface.
 
LONG PERIOD COMETS      (LongPeriodComets)
COMETS
 
LONG PERIOD VARIABLE STARS      (LongPeriodVariableStars)
PULSATING VARIABLE STARS MIRA VARIABLE STARS ,
RV TAURI STARS ,
S VULPECULAE STARS ,
WZ SAGITTAE STARS 		LATE TYPE SUPERGIANT STARS
 
LONG SLIT SPECTRA      (LongSlitSpectra)
TWO DIMENSIONAL SPECTRA
 
  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
LOOPS      (Loops)
Combine with other terms
 
LOW LUMINOSITY STARS      (LowLuminosityStars)
LATE TYPE DWARF STARS ,
LATE TYPE SUBDWARF STARS 		DWARF STARS ,
LOW MASS STARS
 
LOW MASS STARS      (LowMassStars)
BLACK DWARF STARS ,
BROWN DWARF STARS ,
HZ HERCULIS STARS 		DWARF STARS ,
LOW LUMINOSITY STARS
 
LOW TEMPERATURE PLASMAS      (LowTemperaturePlasmas)
PLASMAS
 
LUMINESCENCE      (Luminescence)
candoluminescence CHEMILUMINESCENCE ,
THERMOLUMINESCENCE 		AFTERGLOW ,
FLUORESCENCE ,
LIGHT ,
LIGHT EMISSION ,
LIGHT SCATTERING ,
NOCTILUCENT CLOUDS
 
LUMINOSITY      (Luminosity)
absolute intensity ULTRAVIOLET LUMINOSITY ,
X RAY LUMINOSITY 		ABSOLUTE MAGNITUDE ,
BRIGHTNESS ,
FLUX ,
FLUX DENSITY ,
HERTZSPRUNG RUSSELL DIAGRAM ,
INTENSITY ,
LUMINOSITY CLASS ,
MASS TO LIGHT RATIOS ,
MK CLASSIFICATION ,
SURFACE GRAVITY
 
LUMINOSITY CLASS      (LuminosityClass)
MK CLASSIFICATION LUMINOSITY ,
LUMINOSITY CLASSIFICATION ,
SPECTRAL TYPES
See: LUMINOSITY CLASSIFICATION
 
LUMINOSITY CLASSIFICATION      (LuminosityClassification)
CLASSIFICATION DWARF STARS ,
GIANT STARS ,
LUMINOSITY CLASS ,
SPECTRAL CLASSIFICATION ,
SPECTRAL TYPES ,
SUBGIANT STARS ,
SURFACE GRAVITY
 
LUMINOSITY DISTRIBUTION      (LuminosityDistribution)
BRIGHTNESS TEMPERATURE ,
ISOPHOTES
 
LUMINOSITY FUNCTION      (LuminosityFunction)
CLUSTERS OF GALAXIES ,
STAR CLUSTERS ,
STELLAR EVOLUTION
 
  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
LUMINOUS ARCS      (LuminousArcs)
arcs GRAVITATIONAL LENSES ,
QUASARS
 
LUMINOUS BLUE VARIABLE STARS      (LuminousBlueVariableStars)
EARLY TYPE VARIABLE STARS ,
HIGH LUMINOSITY STARS 		EARLY TYPE SUPERGIANT STARS
 
LUNAR      (Lunar)
Combine LUNAR or MOON with other terms. Also see MOON.
 
LUNAR DOMES      (LunarDomes)
MOON ,
SURFACES [CELESTIAL BODIES]
 
LUNAR ECLIPSE      (LunarEclipse)
ECLIPSES MOON ,
PENUMBRA ,
SAROS CYCLE ,
SUN ,
UMBRA
 
LUNAR LASER RANGING      (LunarLaserRanging)
LASER RANGING LASERS ,
MOON ,
OPTICAL RADAR ,
SATELLITE LASER RANGING
 
LUNAR THEORY      (LunarTheory)
CELESTIAL MECHANICS ,
EARTH MOON SYSTEM ,
MOON
 
LYMAN ALPHA      (LymanAlpha)
RESONANCE LINES LYMAN ALPHA FOREST ,
LYMAN CONTINUUM ,
LYMAN SERIES
 
LYMAN ALPHA FOREST      (LymanAlphaForest)
ABSORPTION LINES ,
INTERGALACTIC ABSORPTION ,
LYMAN ALPHA ,
QUASARS ,
REDSHIFT
 
LYMAN BETA      (LymanBeta)
LYMAN CONTINUUM ,
LYMAN SERIES
 
  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
LYMAN CONTINUUM      (LymanContinuum)
HYDROGEN SPECTRUM ,
LYMAN ALPHA ,
LYMAN BETA ,
LYMAN SERIES ,
ULTRAVIOLET RADIATION
 
LYMAN SERIES      (LymanSeries)
BALMER SERIES ,
BRACKETT SERIES ,
HYDROGEN SPECTRUM ,
LYMAN ALPHA ,
LYMAN BETA ,
LYMAN CONTINUUM ,
PASCHEN SERIES ,
PFUND SERIES ,
ULTRAVIOLET RADIATION
 
Thu Jul 3 15:11:37 2008