SYSTEMS IN SPACE

TOPICS

• Telescopes
• Specterscopes
• Comets
• Suns

WHAT IS A TELESCOPE?

• Tool used to see further
• Can be used to see celestial bodies
• Used to discover most things about the universe

HOW DOES A TELESCOPE WORK?

• Uses lenses and mirrors
• Focuses light
• Reflects light

WHAT ARE DIFFERENT TYPES?

• Refractors
• Newtonian reflectors
• Catadioptrics

REFRACTORS

• Good for distant terrestrial viewing
• High contrast images

NEWTONIAN REFLECTORS

• Great for faint deep sky objects
• Deliver very bright images

CATADIOPTICS

• Produce excellent images
• Closed tube design reduces image degrading air currents

WHAT DETERMINES THE EFFICIENCY OF THE TELESCOPE?

• The time of day
• Visibility of the sky
• Location on Earth

WHAT HAS BEEN DISCOVERED USING TELESCOPES?

• The solar system being heliocetric
• Earth being the third planet from the sun
• Distant celestial bodies

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