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Astronomical Observatory
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Thesaurus
Cassegrainian telescope
Newtonian telescope
OAO
OSO
Texas tower
astronomical observatory
astronomical telescope
beacon
belvedere
bleachers
bridge
coelostat
conning tower
coronagraph
coronograph
gallery
gazebo
grandstand
heliostat
lighthouse
lookout
loophole
observation post
orrery
outlook
overlook
peanut gallery
peephole
pharos
planetarium
radar telescope
radio observatory
radio telescope
reflector
refractor
ringside
ringside seat
sighthole
spectrograph
spectroheliograph
spectrohelioscope
spectroscope
telescope
top gallery
tower
watchtower
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