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astro-ph
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A&ATr
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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
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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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1701 "S"
•
Sacramento peak observatory
•
Sa galaxy
•
sag car
•
SAGE neutrino detector
•
sagitta
•
sagittal
•
sagittal focus
•
Saha equation
•
Saha's equation
•
Saha's ionization formula
•
sampling theorem
•
sandwich construction
•
sandwich mirror
•
SAO star catalog
•
Saros
•
Sa Sb galaxy
•
Sa SB spiral
•
Sa spiral
•
satellite
•
satellite astronomy
•
satellite-borne
•
satellite-borne instruments
•
satellite branches
•
satellite camera
•
satellite drag
•
satellite in long-lived orbit
•
satellite line
•
satellite observations
•
satellite observatory
•
satellite-range measurement
•
satellite's motion
•
satellite's orbit
•
satellite spectroscopy
•
satellite's period
•
satellite's spin
•
satellite system
•
satellite track
•
satellite tracking
•
satellite trail
•
satellite vehicle
•
saturated
•
saturated color
•
saturation
•
saturation effect
•
saturation function
•
S-branch
•
SB Sb spiral
•
Sb Sc galaxy
•
Sb Sc spiral
•
scale
•
scale correction
•
scale factor
•
scale of micrometer
•
scale of the Galaxy
•
scale of the universe
•
scale Value
•
scale Value of telescope
•
scan
•
scandium
•
scanner
•
scanning
•
scanning device
•
scanning drive
•
scanning element
•
scanning motion
•
scanning rate
•
scan strip scan
•
scatter
•
scatter diagram
•
scattered beam
•
scattered electrons
•
scattered light
•
scattered radiation
•
scattered starlight
•
scattered star light
•
scattered sunlight
•
scattering
•
scattering atmosphere
•
scattering coefficient
•
scattering cross-section
•
scattering effect
•
scattering efficiency
•
scattering electron
•
scattering function
•
scattering law
•
scattering matrix
•
scattering medium
•
scattering power
•
scattering theory
•
scheme
•
scheme of band heads
•
Schiefspiegler telescope
•
Schmidt
•
Schmidt aplanatic sphere camera
•
Schmidt camera
•
Schmidt camera optics
•
Schmidt-Cassegrain telescope
•
Schmidt plate
•
Schmidt's tube
•
Schmidt system
•
Schmidt telescope
•
Schottky effect
•
Schrodinger's equation
•
Schuman-Runge bands
•
Schuster-Schwarzschild method
•
Schuster-Schwarzschild model
•
Schuster's n
•
Schwinger radiation
•
science
•
scientific probe
•
scintillate
•
scintillation
•
scintillation counter
•
scintillation detector
•
scintillation effects
•
scintillation fluctuations
•
scintillation in direction
•
scintillation in intensity
•
scintillation measures
•
scintillation noise
•
scintillation of radio stars
•
scintillation phenomenon
•
scintillation spectrum
•
scissoring vibration
•
sclera
•
sclerotic
•
SCNA telluric absorption
•
S-component
•
scotch mounting
•
scotopic luminosity curve
•
scotopic vision
•
scratch
•
screen
•
screen brightness
•
screen brilliance
•
screen efficiency
•
screen illumination
•
screen image
•
screening
•
screening constant
•
screening effect
•
screen intensity
•
screw
•
screw micrometer
•
Sc Seyfert galaxy
•
Sc well-developed spiral
•
sea
•
sealing wax
•
search
•
season
•
seasonal
•
seasonal anomaly
•
seasonal changes
•
seasonal variation
•
seat
•
second
•
second art collision
•
second-art transition
•
secondary
•
secondary color
•
secondary cosmic radiation
•
secondary cosmic ray
•
secondary cosmic rays
•
secondary eclipse
•
secondary electron
•
secondary emission
•
secondary image
•
secondary ionization
•
secondary minimum
•
secondary mirror
•
secondary mirror cage
•
secondary processes
•
secondary prominence
•
secondary ring
•
secondary source
•
secondary spectrum
•
secondary star
•
second contact
•
second kind collision
•
second of arc
•
second of time
•
second order Stark effect
•
second subordinate series
•
second subsidiary series
•
section
•
sector
•
sector acceleration
•
sector opening
•
secular
•
secular aberration
•
secular acceleration
•
secular contraction
•
secular determinant
•
secular parallax
•
secular perturbation
•
secular precession
•
secular secular in declination
•
secular secular in right ascension
•
secular term
•
seeing
•
seeing bad
•
seeing compensator
•
seeing conditions
•
seeing disk
•
seeing-disk diameter
•
seeing-disk profile
•
seeing distortions
•
seeing disturbance
•
seeing effects
•
seeing estimate
•
seeing fair
•
seeing feature
•
seeing good
•
seeing image
•
seeing measures
•
seeing monitor
•
seeing observations
•
seeing phenomena
•
seeing phenomenon
•
seeing poor
•
seeing profile
•
seeing shifts
•
seeing study
•
seeing test
•
seeing very bad
•
segmented mirror
•
Seidel aberration
•
seismic detector
•
selected
•
selected area
•
selected equinox
•
selection
•
selection effect
•
selection rules
•
selective
•
selective absorber
•
selective absorption
•
selective diffuser
•
selective effect
•
selective radiator
•
selective receiver
•
selective sensitivity
•
selectivity
•
selenium cell
•
selenocentric
•
selenocentric orbit
•
selenodesy
•
selenographer
•
selenographic
•
selenographical
•
selenographic coordinates
•
selenographist
•
selenography
•
selenological
•
selenology
•
self-absorption
•
self-adjusting
•
self-admittance
•
self-broadening
•
self-consistent field
•
self-energy
•
self-excitation
•
self-feeding
•
self-gravitation
•
self-luminous
•
self-luminous body
•
self-luminous object
•
self-recording
•
self-recording microphotometer
•
self-registering
•
self-reversal
•
self-winding
•
selsyn
•
Selvyn granularity law
•
semiannual term
•
semiconducting bolometer
•
semiconductor
•
semidiameter
•
semidiurnal secular
•
semi-indirect illumination
•
semi-infinite atmosphere
•
semi major axis
•
semimajor axis
•
semi minor axis
•
semiminor axis
•
semipermanent Hα
•
semiregular variables
•
sensibility
•
sensibilization
•
sensitive
•
sensitive amplifier
•
sensitive bolometer
•
sensitive emulsion
•
sensitive film
•
sensitiveness
•
sensitive receiver
•
sensitive region
•
sensitive to light
•
sensitivity
•
sensitivity curve
•
sensitivity distribution
•
sensitivity of system
•
sensitivity pattern
•
sensitization
•
sensitize
•
sensitized
•
sensitizer
•
sensitizing
•
sensitometric processing
•
sensory system
•
separably degenerated
•
separation
•
separation angle
•
separation image
•
septet multiplet
•
sequence
•
sequence of galactic types
•
sequence of structural forms
•
sequence star
•
series
•
series discontinuity
•
series disintegration
•
series limit
•
series of observations
•
Serrurier truss
•
service
•
servo
•
servomechanism
•
servomotor
•
servosystem
•
servo system
•
set
•
set of comparison stars
•
set of observations
•
set rate
•
setting
•
setting circle
•
setting error
•
setting motion
•
setting on star
•
seven-inch transit circle
•
sextant
•
sextet multiplet
•
sextet state
•
shade number
•
shade tube
•
shadow
•
shadow-band pattern
•
shadow bands
•
shadow-band structure
•
shadow method
•
shadow pattern
•
shadow photometer
•
shadow transit
•
shaft
•
Shanghai observatory
•
shape
•
shape of pulse
•
sharp edge
•
sharpening
•
sharp image
•
sharp series
•
sharp solar limb
•
shearing interferometer
•
sheet reflector
•
shell
•
shell of gas
•
shell spectrum
•
shell star
•
shell structure
•
shield
•
shielding
•
shift
•
shininess of the Moon's surface
•
ship
•
shock front
•
shock tube
•
shock wave
•
shooting star
•
short burst
•
short dipole
•
short duration burst
•
short-focus objective
•
short-lived burst
•
short-period
•
short-period comet
•
short-period erratic motions
•
short-period perturbation
•
short scan
•
shortward
•
short-wave end
•
short-wave fade-out
•
short-wave radiation
•
shot effect
•
shot noise
•
shoulder
•
shower
•
shower meteor
•
shutter
•
shutter aperture
•
shutter arches
•
shutter exposure
•
shutter mechanism
•
shutter opening
•
side
•
side effect
•
sidelobe
•
side lobe
•
sidelobe level
•
sidelobe response level
•
sidereal
•
sidereal clock
•
sidereal day
•
sidereal drive
•
sidereal mean daily motion
•
sidereal month
•
sidereal period
•
sidereal period of rotation at the equator
•
sidereal rate
•
sidereal-rate tracking mechanism
•
sidereal rotation
•
sidereal rotation period
•
sidereal second
•
sidereal time
•
sidereal time at mean midnight
•
sidereal year
•
sideriostat
•
siderite
•
siderolite
•
siderostat
•
Siding Springs observatory
•
Siegbahn unit
•
sighting telescope
•
sight line
•
sight-line velocity
•
sigma orbital
•
sign
•
signal
•
signal generator
•
signal/noise
•
signal/noise performance
•
signal-noise ratio
•
signal/noise ratio
•
signal power
•
signal-to-noise
•
signal-to-noise level
•
signal-to-noise ratio
•
signature of metric
•
sign convention
•
significance level
•
significant figures
•
sign of the zodiac
•
silica
•
si