 |
First Optical Image Of Planet Orbiting Sun-Like Star
A new picture from the Hubble space telescope shows the first optical image of a normal planet orbiting a Sun-like star. The planet is the little dot of light in the upper right part of the picture.
(Hubble shows first optical image of planet orbiting another star)
The planet is probably a Jupiter-sized gas giant orbiting Fomalhaut, a star about 25 light years away. It orbits Fomalhaut at a distance of about 18 billion kilometers and takes 872 years to complete an orbit.
The Hubble camera uses an occulting bar, a small piece of metal that blocks the brightest part of the star’s image. The blacked-out area in the center of the picture is where Fomalhaut is (also, the star’s image has been digitally subtracted using an image of another star as a template; that further reduces the amount of unwanted light). The radial lines are not real; they are an optical effect of the very bright star. The ring is real; it’s dust leftover from the formation of the star and the planet. In fact, the thinness of the ring was a big factor in assuming a planet was lurking there; the planet’s gravity sculpts the ring, keeping it narrowly confined. Also, the ring is off-center from the star, and a planet in an elliptical orbit would explain that nicely.
This picture is a great confirmation of an idea that science fiction authors have relied upon for generations; there are other stars with planetary systems, and some of them harbor intelligent life.
Via Discover Blog.
Scroll down for more stories in the same category. (Story submitted 11/14/2008)
Follow this kind of news @Technovelgy.| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion (Back On) ( 1 )
Related News Stories - (" Engineering ")
Swiss HCPVT Giant Photovoltaic 'Flower'
'...leaning against one of the slender stalks of a sunshade-photocell collector.'- David Brin, 1990.
Peel And Stick Thin Film Solar Cells
'It turns sunlight into electricity, just like any solar power converter, but you spray it on.'- Larry Niven, 1995.
Microbattery Extreme High Performance
'To this Foyle affixed a power pack the size of a pea and switched it on.'- Alfred Bester, 1956.
Speeding Ticket Robots To Cite Autonomous Cars?
'There is no danger of a vehicle's speed exceeding that allowed in the section in which it happens to be...'- John Jacob Astor IV, 1894.
Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.
Current News
'Marauder's Map' Created By Carnegie Melllon
'Is that Dumbledore in his study?'
Cheetah Cub Robot From PKD's Android Dreams
'What about an exact electric duplicate of your cat?'
Dead Cellphone? Try Solar-Powered Public Charging Stations
'Then he saw the geek ... leaning against one of the slender stalks of a sunshade-photocell collector...'
Hungry? Grow Nutritious Insects At Home
'...I balked when my wife served me termites.'
Snowboarding On Mars? Heinlein Was Ready
How long ago did Robert Heinlein write about skiing on dry alien worlds?
Orwell's '1984' Hits Bestseller Lists Thanks To PRISM
'There was of course no way of knowing whether you were being watched at any given moment.'
Roboroach Control? There's An App For That
'A cable, here, from the controller to the interface plug... wires from that to the brain.'
Court OK's DNA Collection Like 'Gattaca'
DNA sampling is not the same as fingerprinting.
Squid Vs. Whale Diorama Liked By Humans, Aliens
'Everything was ready, awaiting the Overlords' pleasure...'
Iceberg Harvesting Off Newfoundland's Coast
'Five hundred billion gallons worth of Antarctic iceberg had been towed into Santa Monica Bay.'
Sony's A4-Sized Flexible Digital Paper Notepad
'...he would plug his foolscap-sized Newspad into the ship's information circuit and scan the latest reports...'
Contact Lens Video Display Electronics Now Transparent
'He realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it...'
Tesla's Supercharge Station Plan
'To recharge the batteries, which can be done in almost every town and village...'
Millimeter-Scale Computing For 'Internet of Things'
'In their megalomania they thought to make the very sand beneath their feet intelligent...'
Your Own Handheld Biosensor
'I'm gonna do a hand-held Boink, real quick,' Littleberry said'
DARPA's Warrior Web
'Earth's scientists solved the problem to some extent by devising rigid metallic clothing not unlike armor...'
