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Latest Extrasolar planets Stories

214867c2bb332404cfe2a48d75c589711
2010-08-31 12:27:34

Any driver who's seen deer silhouetted by the headlights of an oncoming car knows that vital information can be conveyed by the outlines of objects. Building on this concept, University of Florida astronomers have analyzed light passing through the upper atmosphere of the giant planet HD 80606 b, about 190 light years from Earth, and determined that its atmosphere contains the element potassium. "It's wonderful that this method works so well for Jupiter-sized planets," said Knicole...

4f8f7e20f35e1325fc57061d3febb8221
2010-08-24 08:20:00

Astronomers at the European Southern Observatory (ESO) have discovered five planets orbiting a star in what is being called by the AFP news agency "the biggest discovery of so-called exoplanets since the first was logged 15 years ago." The ESO astronomers discovered the planetary system around a sun-like star called HD 10180. Using the HARPS spectrograph, they also reportedly discovered evidence which suggests that there may be two additional planets present in orbit around the celestial...

d59270a3776ce280a80f4185688b0a861
2010-07-28 12:44:10

Hundreds of extrasolar planets have been found over the past decade and a half, most of them solitary worlds orbiting their parent star in seeming isolation. With further observation, however, one in three of these systems have been found to have two or more planets. Planets, it appears, come in bunches. Most of these systems contain planets that orbit too far from one another to feel each other's gravity. In just a handful of cases, planets have been found near enough to one another to...

f4b45d43e3c4ea76ccf8a6de12c83d87
2010-07-15 09:25:00

Astronomers using NASA's Hubble Space Telescope have confirmed the existence of a baked object that could be called a "cometary planet." The gas giant planet, named HD 209458b, is orbiting so close to its star that its heated atmosphere is escaping into space. Observations taken with Hubble's Cosmic Origins Spectrograph (COS) suggest powerful stellar winds are sweeping the cast-off atmospheric material behind the scorched planet and shaping it into a comet-like tail. "Since 2003 scientists...

2010-07-15 08:08:00

WASHINGTON, July 15 /PRNewswire-USNewswire/ -- Astronomers using NASA's Hubble Space Telescope have confirmed the existence of a baked object that could be called a "cometary planet." The gas giant planet, named HD 209458b, is orbiting so close to its star that its heated atmosphere is escaping into space. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) Observations taken with Hubble's Cosmic Origins...

13ac4a62467fd04b4aa7988ab6d7fc8f
2010-07-09 07:20:00

A team of astronomers from Germany, Bulgaria and Poland have used a completely new technique to find an exotic extrasolar planet. The same approach is sensitive enough to find planets as small as the Earth in orbit around other stars. The group, led by Dr Gracjan Maciejewski of Jena University in Germany, used Transit Timing Variation to detect a planet with 15 times the mass of the Earth in the system WASP-3, 700 light years from the Sun in the constellation of Lyra. They publish their work...

9f6b1bbd6137f8f80c701ff93a03d0ef1
2010-06-23 13:40:00

Astronomers have measured a superstorm for the first time in the atmosphere of an exoplanet, the well-studied "hot Jupiter" HD209458b. The very high-precision observations of carbon monoxide gas show that it is streaming at enormous speed from the extremely hot day side to the cooler night side of the planet. The observations also allow another exciting "first" "” measuring the orbital speed of the exoplanet itself, providing a direct determination of its mass. The results appear this...

132653ccc5c3023d39678e834b1a1acd1
2010-06-14 08:00:00

By detecting the faint dimming in the light emitted by stars during a transit event, CoRoT has detected six new exoplanets - each with its own peculiar characteristics - and one brown dwarf. One of these exoplanets, designated CoRoT-11b, has twice the mass of Jupiter and orbits a rapidly rotating star; this type of star is an extremely difficult target for exoplanet searches and its detection marks a significant achievement for the CoRoT team. In order to detect planets orbiting other suns,...

a9c3e9afc4207bc299525d68f39d349a1
2010-06-08 10:12:50

A new robotic telescope has had first light at ESO's La Silla Observatory, in Chile. TRAPPIST (TRAnsiting Planets and PlanetesImals Small Telescope) is devoted to the study of planetary systems through two approaches: the detection and characterization of planets located outside the Solar System (exoplanets) and the study of comets orbiting around the Sun. The 60-cm telescope is operated from a control room in Lige, Belgium, 12 000 km away. "The two themes of the TRAPPIST project are...

7e73f8a1ab6386cb3a70f8cf363c39f61
2010-05-24 14:28:22

Astronomers are reporting today the discovery of a planetary system way out of tilt, where the orbits of two planets are at a steep angle to each other. This surprising finding will impact theories of how multi-planet systems evolve, and it shows that some violent events can happen to disrupt planets' orbits after a planetary system forms, say researchers. "The findings mean that future studies of exoplanetary systems will be more complicated. Astronomers can no longer assume all planets...


Latest Extrasolar planets Reference Libraries

6_f3ae28666ea2fe9e06e16221eea19d522
2004-10-19 04:45:41

Extrasolar Planet -- An extrasolar planet is a planet orbiting around a star other than the Sun. Extrasolar planets were first discovered in the 1990s as a result of improved telescope technology, CCD and computer-based image processing which allowed far more accurate measurements of stellar motions. The first extrasolar planets were reported by the astronomer Aleksander Wolszczan in 1993, orbiting the pulsar PSR 1257+12. Subsequent investigation has determined that they are only planets...

3_26342a6670b6131c97d5fc3f8796ebd92
2004-10-19 04:45:40

Epsilon Eridani -- Epsilon Eridani is a main-sequence star in the constellation of Eridanus (the river). It is often used in science fiction because it is extremely sunlike, and in the fictional Star Trek universe it is the home sun of the planet Vulcan which is home to Mr. Spock. It is the third closest star visible without a telescope. It has 85% of the Sun's mass, almost that much of its diameter, and 28% of its luminosity. It is 10.5 light years from Earth. Its spectrum is...

2_a939de6ff82a1bda0a57cee7dd9bce652
2004-10-19 04:45:40

La Silla Observatory -- La Silla is a 2400-m mountain, bordering the southern extremity of the Atacama desert in Chile. It is located about 160 Km north of La Serena. Its geographical coordinates are: Latitude 29 15' south & Longitude 70 44' west. Originally known as Cinchado, the mountain was renamed La Silla (the saddle) after its shape. It rises quite isolated and remote from any artificial light and dust sources (astronomy's worst enemies). La Silla was the first ESO...

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Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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