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astro-ph
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A&ATr
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--
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A
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B
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C
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D
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E
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F
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G
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H
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I
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J
|
K
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L
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M
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N
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O
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P
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Q
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R
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S
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T
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U
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V
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W
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X
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Y
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Z
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1769 "O"
atmospheric
O
2 band
O
association
obiateness
deep sky
object
object
glass
object-glass
object
illumination
wide-angle
objective
objective
cell
objective
classification
objective
grating
objective
lens
object(ive)
mirror
objective
prism
objective-prism
camera
objective-prism
spectrum
object
under observation
oblateness
oblate
spheroid
oblate
symmetric top
precession in
obliquity
obliquity
of ecliptic
obliquity
of the ecliptic
O-branch
optical
obscuration
zone of
obscuration
of external galaxies
obscuring
clouds
dark
obscuring
lane
obscuring
matter
observable
observable
object
observable
sources
observable
universe
weight of
observation
observation
airborne observation
observational
observational
astronomy
to process the
observational
data
observational
details
observational
error
observational
evidence
observational
material
observational
method
observational
procedures
observational
program(me)
observational
radio astronomy
observational
results
observational
selection
observational
technique
observational
test
observational
uncertainty
observational
work
observation
floor
false
observations
observations
in right ascension
radar
observations
of solar system
observations
with telescopes
observation
time
Observatoire
de Haute Provence
observatorial
selection
National Optical Astronomy
Observatories
Observatorio
Astronomico Nacional
Observatorio
del Rogue de los Muchachos
Observatorio
del Teide
Zelenchukskaya
observatory
observatory
building
observatory
clock
observatory
dome
Royal
observatory,
Edinburgh
Royal
observatory,
Greenwich
choosing of
observatory
site
observatory
site selection
observatory
site survey
Palomar
observatory
sky survey
observe
observed
observed
altitude
observed
motion
observed
object
observed
position
observed
radiation
observed
ratio
observed
star
observed
velocity
terrestrial
observer
observer
personal equation
American Association of Variable Star
Observers
observer's
cage
observer's
cell
observer's
chair
observer's
horizon
observer's
meridian
observer's
position
observer's
station
solar
observing
observing
chair
observing
conditions
observing
expedition
observing
frequency
observing
instruments
observing
night
observing
platform
observing
point
coude
(observing)
position
prime
observing
position
observing
program(me)
observing
room
observing
seat
observing
site
robot
observing
station
observing
technique
observing
time
observing
tour
occult
occultation
occulting
disk
visibility of
occupation
occupation
by the Moon
occupation
curve
occupation
of radio star
occupation
of star
frequency of
occurence
rate of
occurrence
oce
Ockham's
razor
octant
octet
multiplet
Ramsden
ocular
ocular
prism
odd