A Rogue Planet - Right In Our Neighborhood

CFBDSIR2149 is probably a rogue planet, and the closest one ever found. Also called interstellar planets, such bodies are planet-sized and not tied to any star system.


(A Rogue Planet - Right In Our Neighborhood)

It was discovered by astronomers surveying a small clot of stars located just about 75 light years from Earth. This cluster, called AB Doradus, is a group of about 30 stars that probably formed together and are still moving through space together, like a swarm of bugs. Using various measurements of the stars themselves, astronomers have determined the stars are young: less than 200 million years old for sure, and possibly only a tenth that age.

The astronomers probed the cluster using a telescope sensitive to infrared light. They were specifically looking for objects of low mass, which, at the clusterís age, tend to glow brightly at those wavelengths, still warm from their recent formation. What they found was CFBDSIR2149.

If it is indeed a member of the cluster, then itís almost certainly a planet-like object. It would have a mass about four to seven times that of Jupiter: Earth-like, it ainít. Itís big, but well below the mass a star would have, and still fairly safely in the range of what we call a planet. It has a temperature of about 450 degrees Celsius (850 degrees Fahrenheit), which is pretty warm by human standards, but even the smallest, coolest stars are hotter. Again, it looks more like a planet than a star.

But the most interesting bit is that thereís no star nearby! That is, it doesnít appear to be orbiting a star; itís sitting out there in the cluster, but pretty much on its own.


(When Worlds Collide cover)

The term rogue planet comes from Poul Anderson's 1967 novel Satan's World. But you'll find an earlier example in the 1932 story When World's Collide by Edwin Balmer and P. Wylie:

Bronson's calculations revealed to him that these wandering spheres would pass very close to the earth, make a circuit of our sun, and turn back toward space and infinity. The larger of the two wandering worlds would strike and annihilate the earth...

From CFBDSIR2149-0403: a 4-7 Jupiter-mass free-floating planet in the young moving group AB Doradus? via Slate. Thanks to Winchell Chung for the tip on this story.

Scroll down for more stories in the same category. (Story submitted 11/16/2012)

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 ( 9 )

Related News Stories - (" Space Tech ")

Revisiting A Cloud City On Venus
I've been looking forward to something like this since 1980.

'Windowless Cockpit' Like Star Trek's Patent Applied For
Wait - you thought Sulu had a window?

NASA's Warp Speed Starship Design
'As Earth's faster-than-light spaceship hung in the void between galaxies...'- John W. Campbell

ForceShoes, NASA's Exercise Sandals For Astronauts
'Joe got out the gravity-simulator harnesses.'- Murray Leinster, 1953.

 

Google
  Web TechNovelgy.com   

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

NASA's Highway In The Sky For Drones
Traffic is everywhere.

Palcohol Powdered Alcohol - Try Or Ban?
'I had a small can of powdered alcohol disguised as tooth powder...'

pd.id Personal Drink ID Device Like Dune 'Poison Snooper'
'The jeweled hands clutching drinks (and the unobtrusive inspections with tiny remote-cast snoopers)...'

Monsieur Bartending Robot
'He poured the liquids into his maw...'

Cities Detect Gunfire Acoustics With ShotSpotter
'Sound trackers on the roof...'

Cruise Automation's 'Highway Autopilot' For $10K
'It cut her out of the stream of vehicles and reduced the speed of her car...'

Pengheng Space Capsule Hotel Staffed Entirely By Robots
'A planet-wide chain of hotels that specialized in non-human service.'

Electric Bacteria That Live On Pure Energy
'April 5, 1977; that was the night the waveries came.'

EXACTO Smart Bullet From DARPA
Nicely visualized in what 1984 movie?

Neural Implant To Treat Memory Loss
'You've got remote storage. How regular is the update?'

MIT's Shape-Shifting Robot Materials
The T-100, an advanced prototype, is made of liquid metal. Not quite ready.

LS3 AlphaDog Robot Marine Corps Video
'He admired the fast-plodding, articulated legs, so necessary since roads had degenerated...'

Vantablack Is Blacker Than Your Black
'Well, we have a black coating now thatís ninety-nine percent absorptive...'

Remotely Operated Gardening Rover - Student's Space Agricultural Robot
'There were things growing all over the place, not just in some domed enclosures blasted some millions of miles out in to space.'

Revisiting A Cloud City On Venus
Lando Calrissian, are you still available?

'Windowless Cockpit' Like Star Trek's Patent Applied For
Mr. Sulu, take us out.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.