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Key terms:
betelgeuse
star
diameter
orionis
observations
telescope
astronomical
arabic
images
constellation
light
radius
angular diameter
ultraviolet
variable
earth
distance
surface
sun
photosphere
objects
brightest
measured
pease
infrared
alpha orionis
disk
michelson
emission
optical
wavelengths
persian
hubble space telescope
mount wilson
giant
arabic name
diameter of betelgeuse
parallax
variable star
light years
hotspots
supernova
albert
wilson observatory
aperture
astronomical interferometer
francis
nasa
armpit
resolution
Search external links cited by footnotes on Wikipedia page Betelgeuse:
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