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Hubble Space Telescope. Advanced Space Academy Fall 2003. USSRC Proprietary. Hubble Astronomy. The Astronomer: Edwin Hubble The Telescope: Mission, Optics & Repairs Major Discoveries Companions: past, present and future. The Astronomer: Edwin Hubble 1889-1953.
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Hubble Space Telescope Advanced Space Academy Fall 2003 USSRC Proprietary
Hubble Astronomy • The Astronomer: Edwin Hubble • The Telescope: Mission, Optics & Repairs • Major Discoveries • Companions: past, present and future
The Astronomer: Edwin Hubble 1889-1953 • 2.5m Schmidt reflector at Mt Palomar • Andromeda: proved many “nebulae” are star systems or galaxies like Milky Way • 1929: Expanding Universe
The Mission • Launch Date: 1990 • First Functionality: 1993 • Range: UV, IR and Visible light • Major Objectives • Outer Solar System • Black Holes • Age of Universe • Total Sky Survey
Backyard Comparison: • 1 degree = 60 arcminutes = 3600 arcseconds • Best ground scopes: 1 arcsecond • Hubble: .05 arcsecond • 2 fireflies in San Francisco from NYC
The Telescope: Optics/Repairs • 1993 STS-61: Corrective optics • 1999 STS-103: Gyroscopes, Computer, Data Recorder • 2002: new solar arrays, coolant for IR camera, remove COSTAR
Major Discoveries: Solar System • Quaoar (Qwa-War) • Not a tenth planet! • One of many icy balls in Kuiper Belt with Pluto
Major Discoveries: Solar System • Neptune’s disappearing storms
Major Discoveries: Solar System • Jupiter & Shoemaker-Levy, 1994
Major Discoveries: Black Holes • Chicken vs. egg: Black holes in star clusters seem to form galaxies
Major Discoveries: Supernova Remnant • Harbors Neutron Star • Rotation: 8 seconds • Gamma Ray Repeater
Major Discoveries: Age of the Universe • Cooling of White Dwarfs • 13-15 billion years • Oldest known Milky Way planet: 13 billion years old
Companions: The Great Observatories • Chandra • Compton (deorbited 2001) • SIRTF – Launched September 2003 • [XMM-Newton (ESA)]
Companions: Chandra • X-ray • Mirrors nearly parallel to light • Eta Carina: Black hole? • Deep Sky Survey
Companions: Compton • Gamma Rays (high energy, short wavelength) • No lens or mirror – instead, dense atoms • Measure angle of escaping electrons after gammas hit
Companions: SIRTF • New name December 2003 • Infrared (heat) • Detects stars-to-be
More Information • www.stsci.edu • www.gsfc.nasa.gov • www.spaceflight.nasa.gov