telescope primary subject, 415 assertions
Subgroups 8
large telescope 5
reflecting telescope 3
reflector telescope 3
refracting telescope 3
space telescope 3
finder scope 2
optical telescope 2
radio telescope 1
Aspects 9
image 84
mirror 40
aperture 10
field 9
magnification 9
resolution 7
lens 6
power 5
objective 4
AtLocation 21
chile 0.57
hawaii 0.54
mexico 0.51
spain 0.49
arizona 0.49
orbit 0.47
antarctica 0.46
mauna kea 0.46
the south pole 0.43
australia 0.43
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CapableOf 166
use mirror 0.69
collect light 0.69
come with eyepiece 0.65
view jupiter 0.64
see object 0.63
study galaxy 0.63
come with two eyepieces 0.63
come with tripod 0.62
produce image 0.62
focus light 0.60
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CreatedBy 2
amateur astronomer 0.34
combining a convex obje… 0.28
HasA 17
focal length 0.45
focuser 0.44
two mirrors 0.38
aperture 0.36
primary mirror 0.35
larger aperture 0.29
ritchey-chrétien optica… 0.28
focal ratio of f/10 0.28
a field of view 0.27
narrow field of view 0.27
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HasProperty 50
operational 0.76
great 0.64
small 0.63
good 0.63
large 0.62
easy 0.59
cheap 0.58
useful 0.57
open 0.56
heavy 0.53
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IsA 2
instrument 0.51
optical instrument 0.45
MadeOf 4
available lenses 0.33
discarded hose reels 0.28
other scrap wood 0.28
brass 0.28
ReceivesAction 150
built 0.76
launched into space 0.69
designed 0.69
operated 0.65
made 0.64
mounted 0.63
installed 0.62
collimated 0.61
dismantled 0.59
used in astronomy 0.58
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UsedFor 3
astrophotography 0.43
research 0.40
education 0.25