Feeds

Boffins unveil sharpest ever stellar snaps

Outdoing Hubble, from the ground

Secure remote control for conventional and virtual desktops

Astronomers working at the Palomar observatory have taken some of the clearest ever pictures of space. A US and UK team of stargazers have taken advantage of new adaptive optics technology to out-do even the Hubble Space Telescope for sharpness.

The problem with taking pictures of stars from the ground is that the atmosphere gets in the way. One way round this is to put your camera in space. But the Cambridge Institute of Astronomy scientists have developed a technique that takes advantage of fluctuations in atmospheric haze to snap the sharpest possible image of the heavens.

The Globular cluster M13 as imaged conventionally, and with Lucky adaptive optics

The boffins explain: "The camera works by recording the images produced by an adaptive optics front-end at 20 frames per second or more. Software then checks each one to pick the sharpest ones. Many are still quite significantly smeared but a good percentage are unaffected. These are combined to produce the image that astronomers want. We call the technique "Lucky Imaging" because it depends on the chance fluctuations in the atmosphere sorting themselves out."

Adaptive optics has been used to resolve binary systems in the infrared where previously astronomers could only see smudges. The technology has sharpened up views of singles stars too, but the newly released pictures of the Cat's Eye nebula and the M13 globular cluster (above) are quite possibly the most stunning images produced yet.

In the M13 globular cluster, the stars are crammed together as little as one light day apart. The adaptive optics allow us to see that separation for the first time, even though we are 25,000 light years away. (Although this is still a terrifyingly long way for a human to contemplate travelling, the nearest star to our own sun is a whopping four light years away.)

More pics here. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
SCREW YOU, Russia! NASA lobs $6.8bn at Boeing AND SpaceX to run space station taxis
Musk charging nearly half as much as Boeing for crew trips
Boffins say they've got Lithium batteries the wrong way around
Surprises at the nano-scale mean our ideas about how they charge could be all wrong
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
Edge Research Lab to tackle chilly LOHAN's final test flight
Our US allies to probe potential Vulture 2 servo freeze
Europe prepares to INVADE comet: Rosetta landing site chosen
No word yet on whether backup site is labelled 'K'
India's MOM Mars mission makes final course correction
Mangalyaan probe will feel the burn of orbital insertion on September 24th
Cracked it - Vulture 2 power podule fires servos for 4 HOURS
Pixhawk avionics juice issue sorted, onwards to Spaceport America
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.