pretelescopic
telescopically
perspective glass
telescopy
first light
skytime
teleotoscope
telescopic
robodoc
radio observation
telescopical
radiotelescopy
astrotechnology
Dobsonian
telescopist
glass
spyglass
field glass
Galilean telescope
collimator
pole
astrograph
telestereoscope
coronograph
dynameter
refractor
radiospectrometer
Hubble
Lovell
Newcomb
Sir Bernard Lovell
Simon Newcomb
Sir Alfred Charles Bernard Lovell
telescoping
dioptric
telespectrograph
monocular
phototelescope
astrointerferometer
water telescope
tailpiece
optical telescope
drawtube
astronomical telescope
photoheliograph
optical astronomy
astrogeodesy
monoscope
zenith sector
transit instrument