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1956 "D"

D
remnants of the supernova of A. D.
daily
daily error
daily map
sidereal mean daily motion
daily revolution
daily rotation
daily variation
Dall-Kirkham telescope
Dalton law
damp air
damped oscillation
damping
damping broadening
damping constant
damping factor
damping wing
Danjon astrolabe
Danjon scale
dark (absorption) nebula
dark adaptation
dark area
dark band
dark cloud
dark companion
dark current
dark dome
law of darkening
darkening coefficient
darkening to limb
dark exposure
dark flocculus
dark Fraunhofer lines
dark hemisphere
dark line
dark material
sky darkness
dark noise
dark obscuring lane
dark obscuring matter
dark room
dark-room illumination
dark side
International Dark Sky association
dark sky background
dark slide
dark star
dark subtraction
dashed term
raw data
data analysis
Hubble data archive
Lyon-Meudon extragalactic database
National Space Science Data Center
digital data presentation
techniques of data processing
data reduction
NASA extragalactic data set
modified Julian date
international date line
date of supernova
D atom
David Dunlap observatory
Dawes limit
false dawn
lengthening of the day
day airglow
day glow
daylight
daylight exposure
daylight hemisphere
daylight saving time
day(light) side
daylit hemisphere
independent day numbers
magnetically quiet days
day sky
day-time meteor
day-time meteor activity
daytime radiant
daytime shower
daytime stream
dazzlernent
free-burning dc arc in air
free-burning dc arc in vacuum
DC comparison radiometer
H and D curve
deactivating collision
dead air
dead reckoning position
dead time
Instituto de Astrofisica de Canarias
heat death
volcanic debris
debris of supernova
de Broglie wavelength
principal source of decameter activity
decameter burst
decameter observations
decameter (radio) sources
decameter radio storm
decameter radio waves
decameter source regions
decameter(-wave) emission
decameter (wavelength) band
decameter (wavelength) radiation
decameter (wavelength) range
decameter wavelength region
decameter wavelengths
decameter waves
decameter(-wave) spectrum
decametric
decametric emission
Instituto de Astrofisica de Canarias
radioactive decay
decayed atom
decay law
decay photon
deceleration
decibel
decimeter burst
decimeter component
decimeter continuum
decimeter observations
decimeter radio waves
decimeter(-wave) emission
decimeter (wavelength) band
decimeter (wavelength) radiation
decimeter (wavelength) range
decimeter wavelength region
decimeter waves
decimeter(-wave) spectrum
decimetric emission
decimillistilb
secular secular in declination
declination and right ascension
declination angle
true declination at date
declination axis
declination(-axis) bearings
declination box
declination-box frame
declination circle
declination determinations
declination drive
declination-drive system
declination gear
declination gear device
declination micrometer
declination motion
declination observations
errors in declinations
declination trunnion
declination worm
decline rate
decollimation
decomposition probability
Fourier deconvolution
Forbush decrease
Balmer decrement
decrement of visual threshold
Centre de Donnees astronomiques de Strasbourg
deep-dust model
solar model in deeper layers
deep sky filter
deep sky object
deep space network
deexcitation
term defect
defective illumination
deferent
define
defining
defining pad
defining support
definition
deflection
deflection angle
deflection drift
defocus
defocusing
nuclear deformation
deformation vibration
resonance degeneracy
degenerate
separably degenerated
triple degenerated species
degenerate electron
relativistic degenerate gas
degenerate gas law
degenerate matter
degenerate star
degenerate state
degrading of bands
square degree
degree of arc
degree of dissociation
degree of ellipticity
degree of freedom
degree of ionicity
degree of ionization
degree of openness of spiral
Observatoire de Haute Provence
time delay
delayed pulse
time delay integration
delay line
delineation of meteor radiants
Dellinger effect
Observatorio del Rogue de los Muchachos
Roque de los Muchachos observatory
Observatorio del Rogue de los Muchachos
, δ
Delta Cephei stars
δ
Observatorio del Teide
demount
dense cluster
varying density
number/flux density count
density difference
probability density distribution
density distribution of hydrogen
variable density filter
density gradient
density in space
density ionization
density law
density of galaxies
mean density of matter
density of plate
electron density per unit length
number/flux density relation
number/flux density statistics
method of dependences
depolarization
depolarization factor
depolarizer
depression
depression of continuum
radar depth
depth of asphericity
depth of focus
Instituto Argentino de Radioastronomia
Institut de radio astronomie millimetrique
image de-rotator
Van der Waals forces
van der Waals interaction
descending node
descriptive astronomy
deserts
homological transform design
de Sitter's model
de Sitter's universe
main control desk
Deslandres-d'Azambuja bands
Deslandres table
Centre de Donnees astronomiques de Strasbourg
destructive interference
electron detachment
detail
detailed balancing
detailed exposure
detailed structure
surface details
limit of detectability
smallest detectable signal
number of detectable sources
correlation detection
overall detection efficiency
coherent detection spectroscopy
detective quantum efficiency
normalized detectivity
X-ray detector
detector image detector
deterioration of image
secular determinant
distance determination
right-ascension determinations
detonating bolide
Centre National d'Etudes Spatiales
stellar deuterium
deuterium line
deuterium line radiation
develop
developability
developed image
developed plate
life of developer
developing
developing bath
developing room
uniform development
sunspot development chart
development curve
development fog
development time
standard deviation
deviation angle
deviative prism
charge coupled device
position-measuring devices
dewar
dew cap
dewcap
dew remover
D F
star diagonal
diagonal group
diagonal line of multiplet
diagonal mirror
diagonal sum rule
two color diagram
sun dial
induced diamagnetism
diameter visual diameter
diameter data
diameter measurement
small (diameter) source
large diameter source
diameter visual diameter
diamond milling
diamond ring
iris diaphragm
diaphragm aperture
diapositive
diatomic molecule
Osservatorio di Bologna
Osservatorio di Brera
dichotomize
dichotomy
dichroic crystal
dichroic mirror
Dicke method
Dicke radiometer
Dicke's arrangement
Dicke's technique
receiver using Dicke switch
Dicke system
Dicke system receiver
astronomical dictionary
dielectric constant
dielectronic recombination
tone difference