Scientists believe that Sun started its life about
Old constellation names refer to the areas of sky instead of
The smaller stars live for much
Contemporary, sun to the stage of red supergiant, it would take approximately
The stars in a spiral galaxy are
After turning of sun into red supergiant, the outer layers of sun will start turning into
The temperature of surface of sun is
Astronomers search black holes
Stars of a constellation look close together. Infact they are on immense
The sun is the center of the
The diameter of Sirius-A is
Almost half of the sun's hydrogen has been converted into
The distance that light travels in one year is known as
The stars we see in a dark night are
Compared to an optical telescope, the radio telescope should be
The distance between Sirius and Earth is about
Some constellations can be seen around the year, they circle around the sky never sinking below the
A black hole is more dense than a
By Sirius B, Sirius A is orbited every
The telescope that makes a far off object bigger is known as
More constellations were discovered when people drew maps of
A neutron star weighs more than
The average distance between each star is about
A dish is faced towards sky to focus and collect
The world's most famous telescope is
In 1930, astronomers divided sky into
Neutron stars are much denser than
In Hubble telescope a computer combines information provided by the separate
Asteroids are rocky, airless worlds that orbit our sun but are too small to be called
The sun is too close to earth, this is why it looks
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