radiograph
spectrohelioscope
spectroheliometer
pyranometer
pyrheliometer
roentgenometer
pyrheliometry
spectroheliokinematograph
absorptiometer
telespectrograph
solar telescope
telespectroradiometer
photoheliograph
transilluminator
coronograph
solargraphic
ondoscope
ionization tube
ionization chamber
radio observation
radiospectrometer
photospectroradiometer
telephotometer
reflector
autoradiography
astronomy satellite
eclipsareon
heliograph
astrolabe
aerometeorograph
wavemeter
spy satellite
phototelescopic
irradiometer
langley
teleotoscope
radio sounding
filtergram
sunshield
dosimeter
Geiger counter
tachygraphometer
photochronograph
spark chamber
spark counter
solar radiation
radiographics
coronagraph
bolometer
radiomicrometer
X-ray telescope
robodoc
radio detection and ranging
pole
coude telescope
coude system
radar
microwave radar
coronagraphy
planetarium
radar astronomy
radiation pyrometer
telescopically
radiolocation
otheoscope
zonographic
polariscope
astrometer
astronomical telescope
radiotelemetrically
radioautographed
STEREO
spectromagnetograph
solargraphy
telescope
thoracometer
autoradiograph
lithium-drifted silicon detector
radiotelemeter
spectroheliograph
telescopical
sampler
actinometer
spectrophone
sampling station
spectrogram
subreflector
focimeter
radioscope
spectrofluorometric
astrophotometer
echograph
telespectroscope
ionosonde
starshade
radarscope