The Suns The Coments And The Telescope
Published on Nov 27, 2015
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PRESENTATION OUTLINE
COMETS
- A Comet is an ice body that releases gas or dust.
- They are often compared to dirty snowballs.
- Comets orbit the sun.
- But most are believed to inhabit in an area known as the Oort Cloud.
- Comets lose ice and dust each time they come near the sun.
Photo by kevin dooley
COMETS
- Some comets, called sun-grazers smash high into the sun or get close that they evaporate.
- Asteroids classify comets based on the durations of their orbits around the sun.
Photo by Michael Karrer
SUN
- The surface of the sun is called the Photosphere.
- It has a temperature of 5,800 degrees kelvin.
- The sun is 70% hydrogen and only 28% helium.
- The hydrogen slowly converts to helium overtime.
- It takes nearly 36 days for the sun to rotate around its axis once.
Photo by ecstaticist
SUN
- At the equator of the sun, it rotates 25.4 degrees once a day.
- The sun is categorized as a star, it is a star but I very big one.
- The sun is the largest object in the solar system.
Photo by Valentina_A
TELESCOPE
- Light shines on an object then bounces of the object and reaches our eyes
- The retina is the part of the eye that collects or receive light
- Retina send light to our brain in the form of electronic pulses
- The brain then uses the electronic pulses to form visual images.
- This is the process that allows us to see in a telescope
SPECTROSCOPE
- Works by breaking light in into the wavelength
- Some spectroscope are made out of diffraction grating - a material that haves a lot little parrellel line
- That are approximately one wavelength apart
- There may be 35000 of these little lines in one inch of the material.
Photo by Reverend Aviator
