Sirius Star

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Sirius Star

• Drew Manson

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Distance from the sun

• From the sun, it is at a distance of 2.6 parsecs
  (8.6 light-years). This is about 5 x 1013 miles.

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Life cycle

• Siriuss life cycle states that it was born as a
  medium size star, will turn into a red giant,
  supernova, and become a neutron star or white
  dwarf. It is currently in the medium star stage.
  It will die by supernova.

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Constellation

• Sirius is in the Canis Major constellation. Canis
  major represented either a two-headed dog, a dog
  that was a gift from Zeus to Europa, or Orions
  hunting dog, helping him to fight Taurus.

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H-R Diagram
ltltltltltltltltltltltlt
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Temperature

• Sirius 9600 Kelvins
• Sun 5778 Kelvins

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Color

• Sirius is blue
• The Sun is yellow

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Size/mass
gtgtgtgtgtgtgtgt
It has about 2.1 times more mass than the sun,
and its about 1.71 times bigger than the sun.
(the picture may be wrong)
The sun has a diameter of 1,391,980 kilometers
Sirius has a diameter of 1.8 times that of the
sun (2,505,564 kilometers)
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Brightness

• Sirius is the brightest star in the night sky as
  seen from Earth other than the sun. Brightness is
  different than luminosity.

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Bibliography

• Thanks to wikipedia for constellation info,
  birghtness,
• Thanks to http//fanfiction.mugglenet.com/viewuser
  .php?uid6811 for the title picture
• Thanks to http//outreach.atnf.csiro.au/education/
  senior/astrophysics/stellarevolution_hrintro.html
  for the H-R diagram

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Bibliography Continued

• Thanks to http//www.kiroastro.com/images/perspect
  ive/sun2.jpg for the size picture and info
• Thanks to http//wiki.answers.com/Q/How_far_is_Sir
  ius for the distance info
• Thanks to http//domeofthesky.com/clicks/sirius.ht
  ml for the temperature info

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More Bibliography

• Thanks to http//library.thinkquest.org/C0110277/
  stars/life_cycle1.htm for the life cycle info

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END