Five Jupiter-like planets discovered

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UK-based scientists have discovered five new Jupiter-like planets that are similar in characteristics to our solar system’s biggest planet -Jupiter. The newly discovered planets were designated WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b. They orbit very close to their host stars and are hot as compared to Jupiter.

Facts that you must know

Researchers from Keele University in UK used the Wide Angle Search for Planets-South (WASP-South) instrument, which is an array of eight cameras observing selected regions of the southern sky, to study five stars showing planet-like transits in their light curve.    

The orbital periods of the planets vary from 2.17 to 5.75 days, and their masses range from 0.3 to 1.2 the mass of Jupiter, with radii between one to 1.5 Jupiter radius. Their host star has a similar mass to the Sun of our solar system but it is much older based analysis of its effective temperature and density. 

♦ WASP-124 b: It is less massive than Jupiter, has orbital period of 3.4 days and a much younger parent star.

♦ WASP-126 b: It has the lowest-mass. The low surface gravity and a bright host star make the planet a good target for transmission spectroscopy.

♦ WASP-129 b: It is  similar to Jupiter in size and has the longest orbital period among the five planets

♦ WASP-133 b: It has the shortest orbital period of only 2.15 days. It is slightly bigger Jupiter.

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