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A
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214
terms
A DWARF STARS
A GIANT STARS
A STARS
A SUBDWARF STARS
A SUBGIANT STARS
A SUPERGIANT STARS
ab variable stars
USE
RR LYRAE STARS
ABELL CLUSTERS
ABERRATION
ABERRATIONS
ABLATION
ABNORMAL SPECTRA
absolute intensity
USE
LUMINOSITY
ABSOLUTE MAGNITUDE
ABSOLUTE TEMPERATURE SCALE
ABSORPTION
ABSORPTION COEFFICIENT
ABSORPTION LINES
absorption nebulae
USE
DARK NEBULAE
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
absorptivity
USE
ABSORPTION COEFFICIENT
ABUNDANCE
ABUNDANCE RATIOS
ACCELERATION
acceleration of gravity
USE
SURFACE GRAVITY
ACCRETION
ACCRETION DISKS
ACHONDRITES
ACOUSTIC WAVES
ACOUSTICS
ACTIVE GALACTIC NUCLEI
ACTIVE GALAXIES
ACTIVE OPTICS
ACTIVE PROMINENCES
ACTIVE STARS
ACTIVE SUN
ACTIVITY INDEXES
ADAPTION
ADAPTIVE OPTICS
ADIABATIC PROCESS
ADJUSTMENT
ADSORPTION
Ae STARS
aerials
USE
ANTENNAS
AEROLITES
AERONOMY
AFTERGLOW
agb
USE
ASYMPTOTIC GIANT BRANCH
AGE
agn
USE
ACTIVE GALACTIC NUCLEI
ai velorum stars
USE
DELTA SCUTI STARS
AIR
AIR CONDITIONING
AIR POLLUTION
air showers
USE
COSMIC RAY SHOWERS
AIRGLOW
AIRPLANE BORNE INSTRUMENTS
AIRY DISKS
ALBEDO
ALFVEN SURFACE
alfven waves
USE
MAGNETOHYDRODYNAMICS
ALGOL VARIABLE STARS
ALIGNMENT [OPTICS]
ALIGNMENT [PLANETS]
ALL SKY CAMERAS
ALL SKY PHOTOGRAPHY
ALMANACS
ALPHA PARTICLES
ALPHA2 CANUM VENATICORUM STARS
ALTAZIMUTH MOUNTING
ALTIMETERS
ALTIMETRY
ALTITUDE [ANGLE]
altitude [height]
USE
ELEVATION
aluminium coatings
USE
ALUMINUM COATINGS
ALUMINIZING
ALUMINUM COATINGS
AM CANUM VENATICORUM STARS
AM HERCULIS STARS
Am STARS
AMATEUR ASTRONOMY
AMMONIA
AMOR GROUP
AMPLIFIERS
AMPLITUDES
ANALOG RECORDERS
ANALYSES
ancient astronomy
USE
ARCHAEOASTRONOMY
ANGLE OF REFRACTION
angular coordinates
USE
SPHERICAL COORDINATES
ANGULAR DIAMETERS
angular distance
USE
ANGULAR SEPARATION
ANGULAR MOMENTUM
ANGULAR RESOLUTION
ANGULAR SEPARATION
ANGULAR VELOCITY
ANISOTROPY
ANNUAL EQUATION
ANNUAL PARALLAX
ANNULAR ECLIPSES
ANOMALIES
ANOMALISTIC MONTH
ANOMALISTIC YEAR
ANOMALY
ANSAE
ANTAPEX
ANTARCTIC OBSERVATORIES
ANTENNA DESIGN
ANTENNAS
ANTHROPIC PRINCIPLE
anticenter
USE
GALACTIC ANTICENTER
ANTIMATTER
ANTINEUTRINOS
ANTINODES
ANTINUCLEONS
ANTIPARTICLES
ANTIPROTONS
ANTIREFLECTION COATINGS
Ap STARS
APASTRON
APERIODIC COMETS
APERTURE SYNTHESIS
APERTURES
APEX
APHELION
APOCENTER
APODIZATION
APOGEE
APOLLO GROUP
apparent anomaly
USE
ANOMALY
apparent diameters
USE
ANGULAR DIAMETERS
APPARENT INTENSITY
APPARENT MAGNITUDES
apparent places
USE
APPARENT POSITIONS
APPARENT POSITIONS
APPARENT SUPERLUMINAL MOTION
apse
USE
APSIDES
APSIDAL MOTIONS
APSIDES
apsis
USE
APSIDES
ARCHAEOASTRONOMY
arcs
USE
LUMINOUS ARCS
area photometry
USE
SURFACE PHOTOMETRY
ARMILLARY SPHERES
arms
USE
SPIRAL ARMS
ARRAY PROCESSORS
ARRAYS
ARTIFICIAL SATELLITES
ascending nodes
USE
NODES
ASHEN LIGHT
ASTEROID BELT
ASTEROIDS
ASTEROSEISMOLOGY
ASTIGMATISM
astroarchaeology
USE
ARCHAEOASTRONOMY
astrobiology
USE
EXOBIOLOGY
astrochemistry
USE
COSMOCHEMISTRY
ASTRODYNAMICS
ASTROGRAPHIC CAMERAS
ASTROGRAPHIC CATALOGS
ASTROGRAPHS
ASTROLABES
ASTROLOGY
ASTROMETRIC BINARY STARS
ASTROMETRIC INSTRUMENTS
ASTROMETRY
ASTRONOMERS
ASTRONOMICAL CONSTANTS
ASTRONOMICAL GEODESY
astronomical instruments
USE
INSTRUMENTATION
ASTRONOMICAL OPTICS
ASTRONOMICAL RESEARCH
ASTRONOMICAL TECHNIQUES
ASTRONOMICAL UNIT
ASTRONOMY
astrophotography
USE
PHOTOGRAPHY
astrophysical jets
USE
JETS
ASTROPHYSICS
ASYMPTOTIC GIANT BRANCH
ATAXITES
ATLASES
ATMOSPHERES
ATMOSPHERIC DENSITY
ATMOSPHERIC EXTINCTION
ATMOSPHERIC RADIATION
ATMOSPHERIC REFRACTION
ATMOSPHERIC SCATTERING
ATMOSPHERIC SCINTILLATION
ATMOSPHERIC TIDES
ATMOSPHERIC WINDOWS
ATOMIC CLOCKS
ATOMIC LINES
ATOMIC PHYSICS
ATOMIC PROCESSES
ATOMIC SPECTRA
ATOMIC TIME
ATOMS
ATTENUATION
auger showers
USE
COSMIC RAY SHOWERS
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