Hubble Space Telescope was named after the scientist Edwin P.Hubble .It was he who first Confirmed the Big Bang Theory.

Hubble was launched on 24th April 1990 into space.

Launched by: NASA with co-operation of ESA.

About Hubble

Curiosity to explore the unknown. Why not from the Earth but in Space? It is the atmosphere partially blocks or absorbs

certain wavelengths of radiation, like ultraviolet, gamma- and X-rays, before they can reach Earth.

These rays are also needed for a complete examination.

Why a Space Telescope?

Hubble Facts

Size Length: 13.2 mWeight: 11,110 kg Maximum Diameter: 4.2 m

Cost at Launch $1.5 billion

Power Needs

Energy Source: The Sun Mechanism: Two 25-foot solar panels Power usage: 2,800 watts

Power Storage Batteries: 6 nickel-hydrogen (NiH) Storage Capacity: equal to 20 car batteries (7 hour backup capacity under the absence of sun

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)• Orbital Period: 97 minutes • Speed: 17,500 mph (28,000 kph)

Optical Capabilities • Sensitivity to Light: UV through IR (115—2500 nm)• Pointing Accuracy: 7/1000th of an arc second• Limitation: Direct view towards sun

Hubble Facts

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.

Data Statistics

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)

Hubble is a type of telescope known as a Cassegrain reflector.

Collecting more light than the human eye can capture on its own.

The Telescope

Optical System

The optical telescope assembly consists of two mirrors, support trusses, and the apertures (openings) of the instruments.

System is a design known as Ritchey-Chretien Cassegrain.