Pistol Star

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Pistol Star

• By Aaron Levett

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SIZE!!!

• The Pistol Star is about 450,520,000 kilometers
  in diameter, smaller then Betelgeuse, but
  compared to the Sun, it is huge. The Sun is about
  1,392,000 kilometers in diameter. The pistol star
  is very big compared to Sirius A, Pollux, Rigel,
  and Deneb. The Pistol Star is almost 400 times
  bigger than the Sun.

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Distance From Sun

• The Pistol star is about 25,000 light years away
  from our sun. Wow!!!

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Temperature

• The Pistol Star is very close to the newest
  brightest star, with a range of 18,000-32,000
  degrees Kelvin, or 17727-31727 degrees Celsius.
  (See next page) The sun is only 6000 degrees
  Celsius.

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How to calculate Kelvin

• From a degrees Celsius, you take the amount of
  degrees, and then add by 273.15 degrees. This is
  how you find Kelvin,
• Example 1000 degrees Celsius is 1273.15 degrees
  kelvin.
• Example Water Freezes at 273 degrees Kelvin, and
  boils at 373 degrees Kelvin.

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Color

• The Pistol Star is A blue hyper giant, compared
  to our sun which is yellow.

Sun Is actually much smaller than comparison
shown.
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Brightness

• The Pistol star is one of the stars with the
  greatest absolute brightness. It gives of as much
  as 2 million times the amount of light in our
  sun. In 20 seconds, it gives off as much light
  and energy as our sun does in one year.

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Hertsprung-Russell Diagram

• As you can see, the pistol star is a little
  brighter then to fit on diagram, so I added an un
  proportional line, adding the number of solar
  units. The dot is showing the temperature and
  color of the star.

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Constellation

• The Pistol star is located in the constellation
  Sagittarius.
• Sagittarius , in Greek mythology is known as a
  centaur, which is half human, half horse. He was
  known as The Archer.
• The Sagittariuss name was Chiron, and was
  accidentally shot by Hercules. In Recognition,
  Zeus put him in the sky, as the constellation
  Sagittarius.

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Life cycle

• The pistol star, is a blue hyper giant, there
  fore it started from a nebula. It then evolved
  into a high-mass protostar. It is currently
  unknown what stage of its life the star is in,
  but scientists predict that in 1-3 million years
  it will explode into a supernova, or maybe even a
  hyper nova, which is even greater. It is
  currently predicted to be in its middle of life,
  because it burns off fuel so fast.

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Works Cited

• http//www.solstation.com/x-objects/pistol.htm
• http//starchild.gsfc.nasa.gov/docs/StarChild/ques
  tions/question21.html
• http//en.wikipedia.org/wiki/Pistol_Star
• http//en.wikipedia.org/wiki/Kelvin
• earthsci.org/processes/geopro/volc/volcterm.htm
• http//outreach.atnf.csiro.au/education/senior/ast
  rophysics/images/stellarevolution/hrwhitecompsml.j
  pg
• http//www.tim-thompson.com/pistol-star.html
• http//www.mahalo.com/answers/science-and-mathemat
  ics/how-do-the-stars-sizes-in-the-milky-way-compar
  e-with-the-sun
• http//www.absoluteastronomy.com/topics/Pistol_Sta
  r
• fhadil77.blogspot.com/.../bersyukur-kita-disinari-
  matahari-bukan.html (even though it is a blog,
  many other blogs and sources agree with info
  about diameter of the pistol star.
• http//en.wikipedia.org/wiki/HypergiantBlue_hyper
  giants (for constillation)
• http//www.astrology.com/allaboutyou/sunsigns/sagi
  ttarius.html

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The End

• Thanks For Watching!!