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Our Sun and Stars

Across
Computed the first accurate distance to the Sun: 153 million kilometers
Dwarf star. The closest star to Earth.
With naked eye only, closely estimated the angle from the moon and sun to be 87 degrees, when true value is 89.83 degrees.
Giant star. 36,000,000km away. 100x brighter than our sun. Radius is 26x bigger than our sun.
Hypergiant star. 5070.16 light years away. 340,000x brighter than our sun. Radius is 1,700x bigger than our sun. Biggest star in the known universe.
Down
Supergiant star. 600 light years away. 10,000 times brighter than our sun. Radius is 680x of our sun.
When objects are observed from two different angles, closer objects appear to shift more than do farther ones
Pioneered the use of a method known as parallax.
Blue-white supergiant star. 2,000 light years away. 100,000x brighter than our sun. Radius is 54x bigger than our sun.
Dwarf star. 2,500,000km away. 25x brighter than our sun. Brightest star in our night sky. Radius is 1.7x bigger than our sun.