www.xinhuanet.com
XINHUA online
CHINA VIEW
VIEW CHINA
 Breaking News Death toll of Iraqi suicide bomb attack rises to over 90    Iran: Avoiding double standards in anti-terrorism combat    US soldier dies of injury sustained in car bomb attack    Hamas leading member killed    Court proceedings against Saddam may start "within days"    Roadside bomb kills US soldier in northern Iraq    
Home  
China  
World  
Business  
Technology  
Opinion  
Culture/Edu  
Sports  
Entertainment  
Life/Health  
Travel  
Weather  
RSS  
  About China
  Map
  History
  Constitution
  CPC & Other Parties
  State Organs
  Local Leadership
  White Papers
  Statistics
  Major Projects
  English Websites
  BizChina
- Conferences & Exhibitions
- Investment
- Bidding
- Enterprises
- Policy update
- Technological & Economic Development Zones
Online marketplace of Manufacturers & Wholesalers
   News Photos Voice People BizChina Feature About us   
Planet with triple-sun detected
www.chinaview.cn 2005-07-17 23:30:23

    
The planet, a gas giant slightly larger than Jupiter, orbits the main star of a triple-star system known as HD 188753 in the constellation Cygnus.
An artist's drawing of three suns and a Jupiter-sized planet from the perspective of a hypothetical moon orbiting the planet. The large sun is already halfway over the horizon, while the two other suns are still visible in the sky. (Photo: NASA)
Beijing July 17 (Xinhuanet)-- A newly detected planet far away in the galaxy has not one, but three suns, according to the astronomers.

    The planet orbits the main star of a triple-star system known as HD 188753 in the constellation Cygnus.

    So the planet, a gas giant slightly greater than Jupiter, experiences the unearthly spectacles of multiple sunrises and sunsets. Its main sun, bright yellow, hovers close by.

    The stellar trio and its planet are about 149 light-years from Earth and about as close to each other as our sun is to Saturn, US scientists reported on Thursday in the current edition of the journal Nature.

    Maciej Konacki of the California Institute of Technology, who made the discovery with the Keck telescope in Hawaii, said scientists previously had no evidence that planets could form or survive in the traffic of such gravitationally complex stellar systems, which were thought to be inhospitable to them.

    "The environment in which this planet exists is quite spectacular," said Maciej Konacki from the California Institute of Technology. "With three suns, the sky view must be out of this world literally and figuratively."

    The heat coming from a nearby star frustrates the initial stages of giant planet formation the gluing together of planetary seeds, called cores. Therefore, the typical hot Jupiter is thought to form farther out beyond a theoretical limit called the snow line. Enditem

    (Agencies)

  Related Story
Copyright ©2003 Xinhua News Agency. All rights reserved.
Reproduction in whole or in part without permission is prohibited.