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 |
|
oceсимметричная проблема |
|
Ockham's razor |
|
octant |
|
octet multiplet |
Ramsden |
ocular |
|
ocular prism |
|
odd |
|
odd atomic term |
|
odd-odd nucleus |
|
odd spot cycle |
state |
odd state |
|
oersted |
telescope, invention |
of |
on the fringe |
of... |
overlap |
of absorption lines |
equinox |
of a catalogue |
arm |
of a cross |
quantum |
of action |
center |
of activity |
remnants of the supernova |
of A. D. |
star |
of advancing spectral type |
effect |
of aging |
circle |
of altitude |
resolution |
of a nebula |
precession |
of angular momentum |
calibration |
of antenna |
plane |
of aperture |
line |
of apsides |
matter |
of arbitrariness |
minute |
of arc |
law |
of areas |
first point |
of Aries |
longitude |
of ascending node |
depth |
of asphericity |
family |
of asteroids |
system |
of astronomical constants |
techniques |
of astronomy |
stellar remnant |
of a supernova |
sudden enhancement |
of atmospherics |
force |
of attraction |
zone |
of avoidance |
isotropic component |
of background radiation |
scheme |
of band heads |
hading |
of bands |
limit |
of band series |
breaking-off |
of band system |
direction |
of baseline |
range |
of brightness response |
system |
of bright rays |
Journal |
of British Astronomical Association |
law |
of Bunsen and Roscoe |
reform |
of calendar |
tropic |
of Cancer |
tropic |
of Capricorn |
system |
of catalogue |
identification |
of central fringe |
time |
of central maximum |
support |
of chromosphere |
reading |
of circle |
near point |
of clear vision |
effects |
of clustering of galaxies |
head |
of column of ionization |
halo es |
of comet |
system |
of comets |
set |
of comparison stars |
equations |
of condition |
effect |
of confusion |
time |
of conjunction |
polarization |
of continuum |
origin |
of coordinates |
polarization |
of core |
flattening |
of corona |
region |
of correct exposure |
application |
of correction |
curve |
of correlation |
components |
of cosmic radiation |
isotropy |
of cosmic rays |
outburst sporadic outbursts |
of craters |
field |
of critical definition |
center |
of curvature |
law |
of darkening |
techniques |
of data processing |
principal source |
of decameter activity |
method |
of dependences |
limit |
of detectability |
number |
of detectable sources |
threshold |
of detection |
life |
of developer |
angle |
of diffraction |
angle |
of dip |
broadside array |
of dipoles |
angle |
of dispersion |
heat |
of dissociation |
relative scale |
of distances |
Hartley's law |
of doublet separating |
rate |
of drive |
effect |
of eccentricity |
spread |
of echo |
visibility |
of eclipse |
pole |
of ecliptic |
symbol |
of element |
periodic system |
of elements |
apparent angle |
of elevation |
degree |
of ellipticity |
angle |
of emergency |
source |
of emission |
method |
of emission of radio waves |
zero |
of energy |
pole |
of equator |
equation |
of equilibrium |
epoch |
of equinox |
precession |
of equinoxes |
principle |
of equivalence |
source |
of errors |
principle |
of exclusion |
retardation |
of expansion |
method |
of expansions |
threshold |
of exposure |
zone of obscuration |
of external galaxies |
cloud |
of extra galactic nebulae |
background |
of extragalactic sources |
threshold gradient sensitivity function |
of eye for grains |
boil |
off |
speed |
of fading |
|
off-axis |
|
off-axis aberration |
|
off-axis distribution |
|
off-axis English mounting |
|
off-axis guider |
|
off-axis guiding |
|
off-axis mirror |
|
off-axis rays |
principle |
of Fermat |
apparent rotation by refraction |
of field |
polar crown |
of filaments |
group |
of fixed lines |
flash phase |
of flare |
frequency |
of flare occurrence |
rate |
of flow of radiation |
depth |
of focus |
line |
of force |
atomic heat |
of formation |
degree |
of freedom |
radio range |
of frequencies |
rate |
of frequency drift |
angular separation |
of fringes |
|
offset |
|
off-set guider |
|
off-set guiding |
system |
of fundamental proper motion |
direction |
of galactic center |
dissociation |
of galactic cluster |
component components |
of galactic emission |
zero |
of galactic longitude |
bulk |
of galactic radiation |
map |
of galactic radio emission |
sequence |
of galactic types |
Catalog of Galaxies and clusters |
of Galaxies |
Catalog |
of Galaxies and clusters of Galaxies |
shell |
of gas |
liberation |
of gases |
theory |
of general relativity |
compression |
of geoid |
plane-parallel plate |
of glass |
field |
of good definition |
blazing |
of grating |
Newton's theory |
of gravitation |
force |
of gravity |
radio telescope |
of great sensitivity |
dissolution |
of group |
theoretical curve |
of growth |
broadside array |
of half-wave dipoles |
line |
of Hα |
vault |
of heaven |
valence theory |
of Heitler-London |
field |
of high definition |
dip |
of horizon |
local system |
of hydrogen |
mass |
of hydrogen atom |
map |
of hydrogen in galactic plane |
quantity |
of illumination |
vibration |
of image |
quality |
of images |
moment |
of impact |
angle |
of incidence |
product |
of inertia |
system |
of instrument |
prohibition |
of intercombinations |
source |
of interference |
ratio of minimum to maximum |
of interference fringes |
telescope |
of intermediate aperture |
principle |
of invariance |
degree |
of ionicity |
state |
of ionization |
abundance |
of isotopes |
radio longitudes |
of Jupiter |
circle |
of least confusion |
tilt |
of lens |
population |
of levels |
first point |
of Libra |
equation |
of light |
velocity |
of light in vacuum |
core |
of line |
polarization |
of lines |
limit |
of line series |
star |
of low metal content |
threshold |
of luminescence |
range |
of luminosity |
bridging arm |
of luminous matter |
reversal |
of magnetic polarity |
chromatic difference |
of magnification |
threshold |
of magnitude |
construction |
of map |
center |
of mass |
outflow |
of matter |
time |
of maximum |
uncertainty |
of measurement |
transit |
of Mercury |
time |
of meridian passage |
passage |
of meteor |
fall |
of meteorite |
delineation |
of meteor radiants |
storm |
of meteors |
signature |
of metric |
scale |
of micrometer |
large outbursts |
of microwave radiation |
magnitude |
of minimum |
ray |
of minimum deviation |
ratio |
of minimum to maximum in record |
ratio |
of minimum to maximum of interference fringes |
flexure |
of mirror |
telescope |
of moderate power |
moment |
of momentum |
pair |
of movable wires |
diagonal line |
of multiplet |
alternation law |
of multiplicities |
collision |
of nebulae |
local structure |
of neutral hydrogen |
creation |
of new material |
regression |
of nodes |
source |
of noise |
source |
of noise storm |
altitude |
of North Pole |
nebular stage |
of nova |
constant |
of nutation |
zone |
of obscuration of external galaxies |
band |
of obscuring matter |
weight |
of observation |
spread |
of observations |
choosing |
of observatory site |
visibility |
of occupation |
frequency |
of occurence |
rate |
of occurrence |
duration |
of one fringe |
degree |
of openness of spiral |
wavelength |
of operation |
ratio |
of optical to radio emission |
error |
of orientation |
region |
of origin |
region |
of over-exposure |
period |
of overlap of two cycles |
Astronomical Society |
of Pacific |
trigonometric series |
of parallaxes |
ejection |
of particles |
difference |
of path |
argument |
of perihelion |
time |
of perihelion passage |
motion |
of perihelion (point) |
range |
of phase angles |
turbulence spectrum |
of photosphere |
investigation of shape |
of pivots |
brightening |
of plage |
disk temperature |
of planet |
laws |
of planetary motion |
system |
of planets |
transmission |
of plate |
method |
of plate constants |
supernovae |
of plates |
manifold |
of points |
state |
of polarisation |
law |
of polarity |
reversal |
of polarization |
prediction |
of position |
constant |
of precession |
Lorentz theory |
of pressure broadening |
base |
of prominence |
poleward migration |
of prominences |
factor |
of proportionality |
shape |
of pulse |
echo cross-section |
of radar |
transfer |
of radiation |
theories |
of radiative transfer |
map |
of radio brightness |
brightness distribution |
of radio disk |
mechanism |
of radio emission |
distribution |
of radio energy |
background |
of radio radiation |
spectrum |
of radio source |
survey |
of radio sources |
occupation |
of radio star |
scintillation |
of radio stars |
ratio |
of radio to light emission |
ratio |
of radio to optical power emitted |
strength |
of radio waves |
slope |
of ray |
noisiness |
of receiver |
speed |
of recession |
principle |
of reciprocity |
method |
of recording transits |
system |
of reference |
arm |
of reflectors |
law |
of refraction |
special theory |
of relativity |
threshold |
of resolution |
local standard |
of rest |
angular rate |
of rotation |
synodic period |
of rotation at the equator |
origin |
of scale |
measurement |
of seeing |
threshold |
of sensitivity |
investigation |
of shape of pivots |
telescope |
of short focal length |
radiant |
of shower |
line |
of sight |
line |
of sight velocity |
range dispersion |
of signals |
principle |
of similarity |
sweeps |
of sky |
tilting screen made |
of slats |
forecast |
of solar activity |
maximum phase |
of solar cycle |
millionth |
of solar disk |
burst |
of solar noise |
components |
of solar radio emission |
higher intensity component |
of solar radio waves |
period |
of solar rotation |
radar observations |
of solar system |
boundedness |
of solution |
transit |
of source |
angular distribution |
of sources |
permittivity |
of space |
parentage |
of spectral terms |
order |
of spectrum |
degree of openness |
of spiral |
birth |
of spot |
orientation |
of spot group |
trail |
of star |
polarization |
of starlight |
subsystem |
of stars |
time |
of start |
photoelectric registration |
of star transit |
Chandrasekhar's parametric equations |
of state |
mutual interaction |
of states |
classification |
of stellar spectra |
sequence |
of structural forms |
heat |
of sublimation |
pressure |
of sunlight |
magnetic life history |
of sun-spot |
longitudinal motion |
of sunspots |
debris |
of supernova |
method |
of support |
plane |
of symmetry |
theory |
of synchrotron emission |
sensitivity |
of system |
line |
of syzygies |
scale Value |
of telescope |
longitude |
of the ascending node |
Publication |
of the Astronomical Society of the Pacific |
Handbook |
of the British astronomical association |
lengthening |
of the day |
mantle |
of the Earth |
obliquity |
of the ecliptic |
precession |
of the equinoxes |
rotation |
of the field of view |
scale |
of the Galaxy |
radio emission |
of the halo |
dip |
of the horizon |
standard error |
of the mean |
plane |
of the Milky Way |
profile |
of the Moon |
theory |
of the Moon's motion |
shininess |
of the Moon's surface |
Publication of the Astronomical Society |
of the Pacific |
image |
of the radio Sun |
coefficient |
of thermal expansion |
Doppler effect |
of thermal motion |
member |
of the solar system |
in the vicinity |
of the Sun |
remnants |
of the supernova of A. D. |
theory |
of the universe |
sign |
of the zodiac |
second |
of time |
band |
of totality |
retardation |
of transit |
spread in time |
of travel |
top |
of tube |
period of overlap |
of two cycles |
region |
of under-exposure |
technique |
of unfilled apertures |
column |
of unit cross sectional area |
error |
of unit weight |
law |
of universal gravitation |
Association |
of Universities for Research in Astronomy |
American Association |
of Variable Star Observers |
general catalog |
of variable stars |
range |
of variation |
transit |
of Venus |
true field |
of view |
threshold |
of visibility |
millionth |
of visible hemisphere |
field |
of vision |
increment |
of visual threshold |
radio range |
of wavelengths |
under conditions |
of weightlessness |
interferometer |
of wide spacing |
effects |
of wind |
burst |
of X-rays |
array |
of Yagi antennas |
array |
of Yagis |
Lorentz theory |
of Zeeman effect |
plane |
of zodiac |
law |
of zones |
молекула гидроксила |
OH |
|
OH line |
фильтр |
O-III |
|
oil pad |
|
oil-pad bearing |
|
Okayama observatory |
|
Olbers' paradox |
|
old Moon |
new Moon in the |
old Moon's arms |
|
old nova |
|
old quantum theory |
|
old star |
|
omnidirectional antenna |
|
omnidirectional flux |
|
once-through corrector plate |
|
Ondrejov observatory |
|
one-dimensional classification |
|
one-dimensional distribution |
|
one-dimensional synthesis |
duration of |
one fringe |
|
one-layered model |
|
Onsala observatory |
|
onstant wave |
setting |
on star |
|
on the fringe of... |
earthshine |
on the Moon |
|
on the wane |
to train |
on to an object |
Information Bulletin |
on Variable Stars |
|
Ootacamund observatory |
continuous |
opacity |
|
opacity law |
|
opaque atmosphere |
|
opaque photocathode |
|
opaque region |
|
opaque screen |
|
open cluster |
shutter |
opening |
degree of |
openness of spiral |
|
open spiral |
|
open tubes |
|
operating frequency |
|
operating position |
|
operating region |
|
operating wavelength |
wavelength of |
operation |
telescope |
operator |
|
oppositely polarized |
|
opposite polarities separating line |
|
opposite polarity |
|
opposition |
|
optic(al) |
|
optical aberrations |
|
optical absorption |
Cambridge |
optical aperture synthesis array |
|
optical arrangement |
prime-focus |
optical assembly |
|
optical astronomer |
instrumentation for |
optical astronomy |
National |
Optical Astronomy Observatories |
|
optic(al) axis |
|
optical axis |
|
optical beam |
|
optical binary star |
|
optical brightness |
|
optical brightness temperature |
|
optical center |
|
optical components |
|
optical cross-section |
|
optical data |
|
optical definition |
|
optical density |
|
optical depth |
|
optical detection |
|
optical device |
|
optical disk |
|
optical distortions |
|
optical disturbance |
|
optical double |
|
optical-double resonance method |
|
optical double star |
|
optical doublet |
|
optical effects |
|
optical efficiency |
|
optical element |
|
optical emission |
|
optical emitting region |
|
optical evidence |
|
optical extinction |
|
optical features |
|
optical flare |
|
optical flat |
|
optical galaxy |
|
optical glass |
|
optical haze |
|
optical identification |
|
optical image |
|
optical index |
|
optical information |
|
optical instruments |
|
optical intensity |
|
optical interference |
|
optical interferometer |
|
optical isophotes |
|
optical libration |
|
optical luminosity |
to identify |
optically |
|
optically identified source |
|
optical magnitude |
|
optical maser |
|
optical material |
|
optical means |
|
optical measurements |
|
optical meteor observations |
|
optical method |
|
optical mirror |
|
optical nerve |
|
optical object |
|
optical obscuration |
|
optical observations |
|
optical observatory |
|
optical parallax |
|
optical path |
|
optical performance |
|
optical phenomenon |
|
optical polishing |
|
optical position |
|
optical power |
ratio of radio to |
optical power emitted |
|
optical precision |
|
optical process |
|
optical properties |
|
optical quality |
|
optical quartz |
|
optical radiation |
|
optical redshift |
|
optical reflector |
|
optical refraction |
|
optical region |
|
optical resolution |
|
optical resolving power |
|
optical results |
|
optical rocket-tracking telescope |
|
optical scattering |
|
optical semithickness |
|
optical sensitization |
|
optical series |
|
optical shadow |
|
optical silica |
|
optical size |
|
optical spectral line |
|
optical spectroscope |
|
optical spectroscopy |
|
optical spectrum |
|
optical star |
|
optical studies |
|
optical Sun |
|
optical sunspot |
|
optical surface |
telescope |
optical system |
|
optical techniques |
|
optical telescope |
|
optical tests |
radial |
optical thickness |
ratio of |
optical to radio emission |
|
optical tracking |
|
optic(al) tracking instrument |
|
optical transfer function |
|
optical tube |
|
optical turbulence |
|
optical universe |
|
optical wavelengths |
|
optical wedge |
|
optical window |
|
optical work |
|
optic eclipse |
|
optic purple |
multi-coated |
optics |
|
optimal filter |
|
optimum sampling |
|
O-radiation |
satellite in long-lived |
orbit |
spin |
orbital |
|
orbital angular momentum |
|
orbital degeneracy |
|
orbital eccentricity |
|
orbital elements |
|
orbital energy |
|
orbital inclination |
|
orbital inclination to the equator |
|
orbital motion |
|
orbital period |
|
orbital plane |
|
orbital quantum number |
|
orbital radius |
|
orbital rocket |
|
orbital speed |
|
orbital vehicle |
|
orbital velocity |
|
orbit determination |
|
orbiter |
|
orbit form |
|
orbiting |
|
orbiting astronomical observatory |
|
orbiting observatory |
|
orbiting satellite |
|
orbiting station |
molecular |
orbit method |
|
orbit prediction |
Earth's |
orbit radius |
Stormer |
orbits |
size |
orbit size |
spectral |
order |
|
ordered magnetic field |
zero |
order frequency |
|
order of spectrum |
overlapping |
orders |
|
order sorter |
second |
order Stark effect |
|
ordinary ray |
|
ordinary wave |
|
orientation |
|
orientation effect |
|
orientation of plate |
|
orientation of spot group |
region of |
origin |
|
original atmosphere |
|
original image |
|
original plate |
|
origin of coordinates |
|
origin of radio waves |
|
origin of scale |
|
origin of the universe |
|
orographical |
|
orrery |
|
orrery software |
image |
orthicon |
|
orthochromatic |
|
orthodromics |
|
orthodromy |
|
orthogonality |
|
orthogonal polarization |
|
orthohelium |
|
orthohydrogen |
|
orthomodification |
|
orthoscopic |
|
orthoscopic eyepiece |
|
ortochromatic emulsion |
|
ortoscopic |
|
ortoscopic eyepiece |
|
Oschin Schmidt camera |
rotational |
oscillation |
Global |
Oscillation Network Group |
space-charge |
oscillations |
local |
oscillator |
|
oscillator strength |
cathode-ray |
oscillograph display |
cathode ray |
oscilloscope |
|
osculating elements |
|
osculating orbit |
|
Osservatorio di Bologna |
|
Osservatorio di Brera |
|
O star |
|
O-type star |
|
our galaxy |
to smear |
out |
supernova |
outburst |
|
outburst from Jupiter |
|
outburst of light |
|
outburst of radio waves |
microwave |
outbursts |
outburst sporadic |
outbursts of craters |
large |
outbursts of microwave radiation |
|
outburst sporadic outbursts of craters |
|
outcoming electron |
far |
outer arm |
|
outer atmosphere |
|
outer core |
|
outer corona |
|
outer photoeffect |
|
outer planet |
|
outer radiation zone |
|
outer regions |
|
outer ring |
|
outer space |
|
outer-space rocket |
|
outflow of matter |
|
outgoing electron |
|
out of focus |
|
out-of-focus |
|
out-of-focus image |
|
out-of-plane vibration |
total power |
output |
receiver |
output fluctuations |
receiver |
output meter |
|
output power |
|
outward flow |
|
outward intensity |
|
outward motion |
|
outward stream |
|
oval mirror |
spill |
over |
|
overall detection efficiency |
|
overall directional diagram |
|
overall gamma |
|
overall illumination |
|
overall integral |
|
overall noise temperature |
|
overall pointing error |
|
overall radiometer system noise |
|
overall sensitivity |
|
overall system noise |
|
over coating |
|
overdense column |
|
overdense cylinder |
|
overdense trail |
|
overdeveloped |
|
overdevelopment |
|
overexpose |
|
overexposed |
region of |
over-exposure |
|
overexposure |
|
overlap |
|
overlap of absorption lines |
period of |
overlap of two cycles |
|
overlapping |
|
overlapping orders |
|
overlapping pulses |
|
over sampling |
|
oversensitization |
|
overstability |
|
overtone |
|
overtone band |
|
Owens valley observatory |
|
oxygen |
|
oxygen absorption |
|
oxygen abundance |
|
Oxygen-III filter |
|
ozone |
|
ozone absorption |
|
ozone F |
|
ozonosphere |
|
oт aphelion |