Our Window to the Soul of the Universe, The Hubble Space Telescope

Courtesy of NASA.
Hubble’s Name:
NASA named the world’s first space-based optical telescope after American astronomer Edwin P. Hubble (1889—1953). Dr. Hubble confirmed an “expanding” universe, which provided the foundation for the Big Bang theory.
Mission:
Launch: April 24, 1990 from space shuttle Discovery (STS-31) 
Deployment: April 25, 1990 
Mission Duration: Up to 20 years 
Servicing Mission 1: December 1993 
Servicing Mission 2: February 1997 
Servicing Mission 3A: December 1999 
Servicing Mission 3B: February 2002 
Servicing Mission 4: May 2009
Size:
Length: 43.5 ft (13.2 m)
Weight: 24,500 lb (11,110 kg) 
Maximum Diameter: 14 ft (4.2 m)
Cost at Launch: 
$1.5 billion
Spaceflight Statistics: 
Orbit: At an altitude of 307 nautical miles (569 km, or 353 miles), inclined 28.5 degrees to the equator (low-Earth orbit)
Time to Complete One Orbit: 97 minutes 
Speed: 17,500 mph (28,000 kph)
Optical Capabilities:
Hubble Can’t Observe: The Sun or Mercury, which is too close to the Sun
Sensitivity to Light: Ultraviolet through infrared (115—2500 nanometers) 
First Image: May 20, 1990: Star Cluster NGC 3532
Data Statistics: 
Hubble transmits about 120 gigabytes of science data every week. That’s equal to about 3,600 feet (1,097 meters) of books on a shelf. The rapidly growing collection of pictures and data is stored on magneto-optical disks.
Power Needs: 
Energy Source: The Sun 
Mechanism: Two 25-foot solar panels 
Power usage: 2,800 watts
Pointing Accuracy: 
In order to take images of distant, faint objects, Hubble must be extremely steady and accurate. The telescope is able to lock onto a target without deviating more than 7/1000th of an arcsecond, or about the width of a human hair seen at a distance of 1 mile.
Hubble’s Mirrors: 
Primary Mirror Diameter: 94.5 in (2.4 m) 
Primary Mirror Weight: 1,825 lb (828 kg) 
Secondary Mirror Diameter: 12 in (0.3 m) 
Secondary Mirror Weight: 27.4 lb (12.3 kg)
Power Storage: 
Batteries: 6 nickel-hydrogen (NiH) 
Storage Capacity: equal to 20 car batteries

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