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1288 "L"
Nuffield Radio Astronomy
Laboratory
laboratory
astrophysics
laboratory
source
laboratory
spectrum
lag
Lagrange's
equations
Lagrangian
point
Lα
Lα
line
Lα-
radiation
Lα-
λ/2
λ=21
λ/4
λ/4
criterion
λ/8
λ/8
criterion
Λ-interaction
Λ(-type)
doubling
S,
Λ-
Λ-
Lambert
law
Lamb(-Rutherford)
shift
laminar
stream
tungsten
lamp
Lande
(g-)formula
Lande
g-Value
Lande
interval rule
Lande's
splitting factor
soft
landing
lunar
landscape
dust
lane
Lanphier
shutter
lanthanides
lanthanum
eyepiece
lanthanum
glass
pitch
lap
Laplace's
operator
La
Plata observatory
Laporte
rule
adiabatic
lapse
rate
universe in the
large
large-aperture
telescope
large-area
photomultiplier
Very
large
array
large
binocular telescope
large
diameter source
large
flare
large
flare event
large
microwave outbursts
Atacama
large
millimeter array
large
observatory
large
outburst
large
outbursts of microwave radiation
large
radio telescope
large
reflector
large-scale
large-scale
galactic motions
large-scale
motions
large-scale
structure
the
largest
optical telescope
Very
Large
Telescope
large
transit
large
zenith telescope
Larmor
frequency
Larmor
precession
Las
Campanas observatory
ruby
laser
laser
collimator
laser
spark
La
Silla observatory
last
quarter
last
stage
latent
image
lateral
angle
lateral
refraction
lateral
support assembly
late
spectral types
late-type
late(-type)
stars
ecliptic
latitude
true
latitude
at date
latitude
difference
latitude
distribution
latitude
observations
latitude
of exposure
at low
latitudes
latitude
service
latitude
stars
latitude
station
latitudinal
lattice
arrangement
lattice
vibrations
Laue
pattern
launch
launching
launching
vehicle
lava
bed
lava
crater
lava
flow
lava
pool
Wien's
law
photographic reciprocity
law
failure
law
of areas
law
of Bunsen and Roscoe
law
of darkening
Hartley's
law
of doublet separating
Newton's
law
of gravitation
alternation
law
of multiplicities
law
of polarity
law
of refraction
law
of universal gravitation
law
of zones
Fred
Lawrence
Whipple observatory
Kirchhoff's
laws
laws
of planetary motion
Appleton
layer
solar model in deeper
layers
leader
leader
spot
leading
edge
leading
spot
leading
sunspot
lead
sulphide cell
leap
month
leap
year
leap-year
circle of
least
confusion
least
squares fit
least
squares method
least-squares
solution
solar(-spectrum)
ledger
legal
day
Legendre
function
Fried's coherence
length
lengthening
lengthening
of the day
length
of exposure
transfer
lens
lens
antenna
lens
astrograph
lens
auxiliary lens
lens
carrier
lens
cell
lens
curvature
lens
distortion
lens
distortion correction
lens
efficiency
lens-mirror
camera
lens
power
single
lens
reflex camera
lens
shutter
lens
speed
lens
system
meniscus
lens
with concentric surfaces
significance
level
level
adjustment
level-crossing
method
energy
level
diagram
level
error
enhanced
(level)
radiation
level
reading
population of
levels
level
surface
level
width
lever
counterpoise
levers
liberation
of gases
first point of
Libra
physical
libration
libration
effect
libration
in latitude
libration
in longitude
libration
point
Lick
observatory
Lick
refractor
Lick
system
life
magnetic
life
history of sun-spot
life
of developer
natural
life
time
lifetime
Ligand
field
visible
light
light
absorption
light
adaptation
light
beam
light
bridge
light
bucket
light
cell
light
curve
light-curve
light
detector
light
distribution
angular
light-distribution
light
distribution in seeing image
light
efficiency
ratio of radio to
light
emission
lightening
lighter
light
filter
light
fog
light
gathering power
light-gathering
power
light
grasp
light-grasp
ambient
light
illumination
light
image
light
intensity
light
interference
velocity of
light
in vacuum
light
loss
light
minute
light
nebula
globe
lightning
light
path
light-path
light
pollution
light
pollution rejection filter
light
pressure
light
propagation
light
pulse
light
quantum
light
ray
light-ray
light-reflecting
power
light
ripples
southern
lights
light
scattering
light-scattering
light
sensitive
light
sensitiveness
light
sensitivity
light
sensitization
light
shield
light
slide
low-pressure
light
source
light-source
light
spectrum
light-speed
light
time
instantaneous
light
vector
light
wave
light
year
light-year
west(ern)
limb
limb
brightening
limb
corrections
solar
limb
darkening
limb
effect
limb
error
limb
flare
limb
irregularities
limb
spectrum
center (to)
limb
variation
lime
spar
Dawes
limit
limitation
instrumental
limitations
limitation
to receiver sensitivity
diffraction
limited
optics
diffraction
limited
resolution
limiting
apparent magnitude
limiting
energy
limiting
error
limiting
frequency
limiting
magnitude
limiting
photographic magnitude
limiting
resolution
limit
of band series
limit
of detectability
limit
of line series
limit
of resolution
final
limits
theoretical
limit
to sensitivity
twenty-one centimeter
line
21-cm
line
absorption
line
absorption coefficient
linear
array
reciprocal
linear
dispersion
linear
electron density
linear
enlargement
linear
expression
linear
function
linearly
polarized
linearly
polarized radiation
linear
molecule
linear
oscillator
linear
polarization
linear
regression
linear
response
rigid
linear
rotator
linear
scale
linear
size
linear
Stark effect
linear
target
linear
velocity
line
blanketing
line-blanketing
index
line
broadening
line
center
line
contour
spectral
line
curvature
21-cm
line
data
21-cm
line
emission
21-cm
line
emitting regions
line
feed
line
fluorescence
line
formation
line
formation problem
zero
line
gap
spectrum
line
intensity
line
merging
21-cm
line
observations
line
of apsides
line
of force
line
of Hα
diagonal
line
of multiplet
Hα
line
of nodes
line
of sight
line-of-sight
line-of-sight
component
line-of-sight
motion
line-of-sight
speed
line
of sight velocity
line-of-sight
velocity
line
of syzygies
hydrogen
line
polarimeter
straight
line
portion
P Cygni
line
profile
21-cm
(line)
radiation
line
radiation
line
ratio
line
receiver
Pickering
lines
line
scattering
limit of
line
series
line
shift
line
shifter
line
spectrum
lines
per inch
line
splitting
relative
line
strength
21-cm
line
studies
line
target
line
to be washed out
line
width
21-cm
(line)
work
hydrogen
line
work
radio
link
microwave
links
interferometer
radio
link
system
liquid
core
liquid
mirror
liquid
propellant
star
list
astronomical
literature
Littrow
condition
Littrow
spectrograph
living
matter
ll-coupling
L
long series of observations
Lloyd's
mirror
ll-
wind
load
loader
wind
loading
load-resistance
photocell
main
lobe
lobe
pattern
pattern
lobes
fine
lobe
structure
lobe
switching
lobe-switching
principle
lobe
system
lobe
width
local
deformation
local
electric field
local
errors
local
figuring
local
geomagnetic time
local
group
local
hydrogen
localize
local(ized)
disturbance
localized
source
local
level
local
magnetic field
local
mean solar time
local
oscillator
local
reference system
local
seeing
local
seeing effects
local
sidereal time
local
standard of rest
local
stars
local
star system
local
structure of neutral hydrogen
local
supercluster
local
system
local
system of hydrogen
local
temperature
local
thermodynamic(al) equilibrium
local
time
locate
location
Lommel-Seeliger
law
Lomonosov
telescope
long
baseline
long-base(-line)
interferometer
very
long
base-line interferometry
long
baseline observations
long
exposure photograph
long-focus
long-focus
collimator
long-focus
lens
long-focus
objective
long-focus
refractor
long-focus
telescope
ecliptic
longitude
true
longitude
at date
longitude
distribution
longitude
of ascending node
longitude
of perihelion
longitude
of the ascending node
conventional
longitudes
radio
longitudes
of Jupiter
longitude
system
longitudinal
longitudinal
magnetic field
longitudinal
motion of sunspots
longitudinal
plasma waves
longitudinal
vibrations
long-lived
feature
satellite in
long-lived
orbit
long-lived
spot
long
period comet
long-period
perturbation
long-period
variables
very
long
photographic exposure
long
range studies
L
long
series of observations
longward
long-wave
end
long-wave
radiation
quick
look
data
loop
loop(-type)
prominence
Lorentz
theory of pressure broadening
Lorentz
theory of Zeeman effect
Lorentz
transformation
Lorentz
unit
Lorentz-Weisskopf
broadening
Observatorio del Rogue de
los
Muchachos
Roque de
los
Muchachos observatory
reflection
loss
conversion
loss
coefficient
loss
cone
loss-less
compression
electron
loss
rate
loss
tangent
lossy
compression
triple
loupe
eyepiece
Lovell
telescope
low-coefficient
glass
low-dispersion
spectrogram
Lowell
observatory
low-energy
component
low-energy
particles
low-energy
radiation
lower
atmosphere
lower
chromosphere
lower
conjunction
lower
corona
lower
culmination
lower
end of tube
lower
level
lower
transit
low-expansion
glass
low-frequency
channel
low-frequency
spectrograph
low-latitude
low-latitude
prominence
at
low
latitudes
low-latitude
station
low-luminosity
star
star of
low
metal content
low-noise
amplifier
low-noise
radiometer
low-noise
receiver
low
pass filter
low-power
objective
low-power
telescope
low-pressure
light source
low
resolution
low-resolution
survey
low-speed
electrons
low-velocity
electrons
loxodromics
LPR
filter
LPR
L-radiation
LR-coupling
LR-
LS-coupling
L-series
L-shell
LS-
lumen
night sky
luminance
luminance
adaptation
luminance
coefficient
relative
luminance
curve
threshold
luminance
difference
threshold of
luminescence
luminescent
range of
luminosity
luminosity
calibration
luminosity
class
luminosity
classification
luminosity
coefficient
scotopic
luminosity
curve
luminosity-distance
luminosity
effect
relative
luminosity
factor of radiation
radio
luminosity
function
dispersion in
luminosity
of sources
luminous
absorption
luminous
efficiency
luminous
emittance
luminous
energy
luminous
flux
luminous
(flux) density
luminous
intensity
bridging arm of
luminous
matter
luminous
reticle
luminous
sensitivity
luminous
standard
Lummer(-Gehrcke)
plate
lunar
lunar
atlas
lunar
atmosphere
lunar
attraction
lunar
calendar
lunar
crater
lunar
crevasse
lunar
crust
lunar
cycle
lunar
day
lunar
disk
lunar
eclipse
lunar
ephemeris
lunar
exploration
lunar
farside
lunar
feature
lunar
formation
lunar
globe
lunar
haloes
lunar
image
lunar
landscape
lunar
luminescence
lunar
mare
lunar
material
lunar
model
lunar
month
lunar
night
lunar
nutation
lunar
observations
lunar
observatory
lunar
observer
lunar
parallax
lunar
phase
lunar
photography
lunar
physics
lunar
plain
lunar
probe
lunar
quiet magnetic variation
lunar
radar
lunar
radiation
lunar
radio emission
lunar
radio waves
lunar
radius
lunar
research
lunar
seas
lunar
surface
lunar
surface Hα
lunar
temperature
lunar
theory
lunar
tidal wave
lunar
topography
lunar
year
during a
lunation
lunik
lunisolar
calendar
luni-solar
diurnal wave
luni-solar
nutation
luni-solar
perturbations
luni-solar
precession
Lunokhod
lux
LX
LX
telescopes
ly
Lyman
alpha detector
Lyman
alpha line
Lyman-Birge-Hopfield
bands
Lyman
continuum
Lyman
continuum radiation
Lyman
ghost
Lyman
limit
Lyman
series
Lyon-Meudon
extragalactic database
Lyot
filter
β
Lyrae
βs
RR
Lyrae
stars
RR
Lyrae
variables
LZT
telescope
LZT
L-
L-
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