Direct detection at last

Article Abstract:

It has been possible to detect light reflected from a planet orbiting a nearby star, giving a direct measure of its mass and size. The planet detected is orbiting every 3.3 days around the star tau Bootis, located 50 light years away close to the constellation Bootes. The researchers calculated that the planet must be between 1.6 times and 1.8 times larger than Jupiter, or between 30% and 50% larger than expected from theory. The planet was found to be blue-green in colour, a finding that conflicts with developing theories of the reflectivity of extrasolar planets.

Planets, Astronomical photometry

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Deposition of metal films on an ionic liquid as a basis for a lunar telescope

Article Abstract:

The article describes how the coating of an ionic liquid with silver on the mirror of the optical telescope, is done and how it is more useful than the zenith telescope.

United States, Science & research, Telescope, Telescopes, Materials, Ionic solutions, Metallic films

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Future optical and infrared telescopes

Article Abstract:

Future advances in optical and infrared telescopes are discussed.

Infrared telescope, Infrared telescopes

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