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ASTRONOMY

Across
The brightest star in the earth's night sky.
Small dense stars typically the size of a planet.
The closest giant star to the sun.
Lie above the main sequence on the Hertzsprung-Russell diagram.
Discovered in 1915 by astronomer Robert Innes.
A white dwarf star, 3.50 parsecs away from the sun.
An orange giant star located about 65 light years from the sun.
A very low-mass red dwarf, 6 light-years away from the earth.
A blue-white supergiant, one of the most luminous stars in the night sky.
Commonly the North Star or Pole Star.
Down
16th brightest star in the night sky.
Fuse hydrogen atoms to form helium atoms in their cores.
The most massive and most luminous stars.
The closest star to the solar system.
The star at the center of the solar system.
Reddish, magnitude varies between 0.0 and 1.3.
A main-sequence dwarf of spectral type K1.
Brightest star in the constellation of Orion.