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By: Curt Collingwood and Clair Mundy
How it works
• Light hits the primary mirror focusing the light beam
• Strikes a secondary mirror which focuses the beam more
• Light beam goes through COSTAR (“contact” lens) to correct for defects
• Light reaches sensor equipment including FOC, NICMOS, STIS
• An image is produced using the data recovered and is sent to earth
A Sharper View on…well Space!
• 5 different instruments• Wide Field Planetary
Camera 2• Near Infrared Camera
and Multi-Object Spectrometer
• Space Telescope Imaging Spectrograph
• Advanced Camera for Surveys
• Fine Guidance Sensors
The Making
• Originally was granted funds in 1977
• Took 8 years to build• Finally went into orbit in 1990
after a break following the challenger disaster
• Defect in mirror causes Hubble to get “contact” lens
• Hubble continues to send clear images to date and is looking to expand its range with a new finer mirror
A Farther Detailed View
• Hubble is the farthest clearest visual telescope yet
• Offers a wide range of detailed imaging and wide range of light waves
Infrared Waves…A New Way to See
• Spitzer is the largest infrared telescope launched into space
• Offers a way to see infrared waves in clearer detail and wider range in detail where most wave lengths are blocked by earth’s atmosphere
• Originally launched in 2003
Infrared Sight
• Spitzer uses a compound telescope designed to reflect and focus infrared waves
• Spitzer’s 3 instruments– Infrared Array Camera– Infrared Spectrograph– Multiband Imaging
Photometer
Penetrating Dust Clouds
• Visuals alone can’t penetrate dense dust clouds that refract light
• Infrared waves do penetrate dust clouds and can be pick up by Spitzer
• It allows scientists to view into some nebula’s and areas where star formations are taking place
Why Use Two?
• Hubble Telescope is great with clear detail and visual light waves – It can’t penetrate dust
clouds or bright areas• Spitzer Telescope is
great with clear infrared imaging– Can’t give a detailed visual
image• So use both and combine
the images to make a wide spectrum range image
Observing Star Formation (SF)
• Formation of stars greatly depends on the matter and density
• Places with high star formations are called “Nurseries”
• In these nebulas and dust clouds, stars can form very rapidly
Star Formation Rates
• Using both Telescopes we can observe areas where stars are forming
• This gives us an estimate on star formation rates compared to size and brightness
• This allows us to see an idea of how the universe and stars might have started out