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Author Topic: A New Planet  (Read 3778 times)

Offline tony6789

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A New Planet
« on: 01/02/2006 14:29:09 »
Science World magezine posted a newly found planet called Osiris. It is a gas planet. All yellow With a giant black dot, 50,000 times bigger than Jupiter's Great Red Spot.

(Don't scientists come up with great names, like The Great Red Spot for example?:))


- Big T


 

ROBERT

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Re: A New Planet
« Reply #1 on: 01/02/2006 14:49:12 »
The discovery of another extrasolar planet was announced last week:-

""The new planet is about five times the size of the Earth and is likely to have a solid surface of ice or rock.
About 170 new planets have been discovered since 1995, but this is the most Earth-like.
* It orbits a red star, a fifth of the size of the sun, near the centre of the Milky Way galaxy.
* The planet's surface is believed to be rock or ice and the surface temperature is estimated to be
 about -220C.
* It would take a beam of light, travelling at 300,000km a second, 25,000 years to travel
 from Earth to the newly discovered planet.

(An artist's impression of newly found planet, OGLE-2005-BLG-390Lb and the red star it orbits.)""

http://www.nzherald.co.nz/section/story.cfm?c_id=82&objectid=10365416
« Last Edit: 02/02/2006 17:33:47 by ROBERT »
 

Offline qazibasit

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Re: A New Planet
« Reply #2 on: 01/02/2006 17:23:23 »
Can we see these planets with a telescope? When ur saying that the light wave takes about 25000 years to reach the planet then how can nasa take this snap.
 

ROBERT

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Re: A New Planet
« Reply #3 on: 01/02/2006 18:06:20 »
This planet (OGLE-2005-BLG-390Lb) was detected using a technique called gravitational lensing.:-

""We let the gravity of a dim nearby star act as a giant natural lens for us, magnifying a distant, bright star. The extra brightening due to the presence of an orbiting planet around the lens star is the signature we are looking for," Dr Pollard said.""

Yes qazibasit, we see distant astronomical bodies as they were thousands / millions of years ago,
 as the light from them takes that long to reach Earth.

The image in my entry above is an "artist's impression" not a "snap".


www.abc.net.au/news/newsitems/200601/s1555413.htm
« Last Edit: 03/02/2006 14:41:07 by ROBERT »
 

The Naked Scientists Forum

Re: A New Planet
« Reply #3 on: 01/02/2006 18:06:20 »

 

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