By blocking out the light from Alcor with a device called a coronagraph, the study team confirmed that, unknown for centuries, Alcor b indeed orbits the larger star.    From Wordnik.com.  [coloradoan.com - Local News] Reference

Historically, researchers have studied the corona during eclipses, when the moon blocks out the disk and reveals the corona, or by using an instrument called a coronagraph, which similarly blocks out the sun's disk.    From Wordnik.com.  [FOXNews.com] Reference

HR 8799, about 130 light years away (one light-year is about 5.9 trillion miles), was examined in Hubble "coronagraph" images in 1998.    From Wordnik.com.  [GeekLikeMe.net] Reference

He invented the polariscope, and produced the first solar coronagraph.    From Wordnik.com.  [Weekend SkyWatcher's Forecast – February 26-28, 2010 | Universe Today] Reference

The camera is equipped with a coronagraph that blocks out the light of the host star, allowing astronomers to view a much fainter planet.    From Wordnik.com.  [First Ever Photos of Extrasolar Planets!] Reference

In March, members of Project 1640 attached their coronagraph and adaptive optics to the 200-inch Hale Telescope at the Palomar Observatory in California and pointed to Alcor.    From Wordnik.com.  [Extra Star Found in the Big Dipper | Universe Today] Reference

That is, perhaps, the crudest coronagraph you could have.    From Wordnik.com.  [Universe Today] Reference

Proba-3 will be the first mission to fly such a 'giant external coronagraph'.    From Wordnik.com.  [Space Business and Industry News at SpaceMart.com] Reference

Hope the folks at STScI swing the coronagraph into place and take this image again!.    From Wordnik.com.  [Discover Blogs] Reference

Riccò's employment, on Mount Etna in July, 1894, of a specially designed coronagraph.    From Wordnik.com.  [A Popular History of Astronomy During the Nineteenth Century Fourth Edition] Reference

Pioneered by team-member Dimitri Mawet and others, the vortex coronagraph is a small glass.    From Wordnik.com.  [physicsworld.com: all content] Reference

A novel "vortex coronagraph," invented by team member Dimitri Mawet of JPL, was used for this step.    From Wordnik.com.  [Zee News : India National]

Sometimes violent outbursts from the Sun can release a volley of high-energy particles. coronagraph.    From Wordnik.com.  [Gearlog] Reference

The coronagraph should be capable of detecting low contrast features and emission lines in the corona.    From Wordnik.com.  [ESA Science & Technology] Reference

ESA's latest StarTiger project is to create a complete working model of such a 'giant external coronagraph'.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

By keeping the coronagraph outside the telescope, the telescope itself can be simplified, potentially reducing costs.    From Wordnik.com.  [SEEDMAGAZINE.COM] Reference

The 100kg satellite carrying a soloar coronagraph will create an artificial "eclipse" to study the corona from space.    From Wordnik.com.  [Top Stories - Google News] Reference

We know how to do it: you take a coronagraph, the same sort of thing we use to look at the outer atmosphere of the Sun.    From Wordnik.com.  [Astronomy Cast] Reference

About 200 Hubble coronagraph images from 1998 remain for similar processing to detect more planets, according to the team.    From Wordnik.com.  [GeekLikeMe.net] Reference

This StarTiger should pave the way for the actual flight of a two-spacecraft coronagraph on ESA's next-decade Proba-3 mission.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

STEREO's coronagraph (occulting disk+camera) is designed to monitor faint but powerful activity in the sun's outer atmosphere.    From Wordnik.com.  [Scientific Blogging] Reference

Prior awareness that the CME was headed straight for Earth came from the NRL-developed coronagraph aboard the SOHO solar observatory.    From Wordnik.com.  [RedOrbit News - Technology] Reference

Czech experiments that observe plasma and wave phenomena are orbiting on ESA's Proba-2 satellite and a Czech coronagraph is proposed for Proba-3.    From Wordnik.com.  [SpaceRef Top Stories] Reference

Then they processed the images with a special computer program, which Dr. Marois described as "a software coronagraph," for processing the images.    From Wordnik.com.  [Impact Lab] Reference

How the kind of external coronagraph developed through StarTiger-2 would work in practice: ESA plans to make Proba-3 the first mission of this kind.    From Wordnik.com.  [Space Tourism, Space Transport and Space Exploration News] Reference

It's called an external occulter, or a starshade, and functions similarly to a coronagraph but lies far outside the telescope rather than within it.    From Wordnik.com.  [SEEDMAGAZINE.COM] Reference

They combined two techniques -- adaptive optics and a coronagraph - to minimize the glare from the star and reveal the dim glow of the much fainter planets.    From Wordnik.com.  [Zee News : India National]

They combined two techniques -- adaptive optics and a coronagraph -- to minimize the glare from the star and reveal the dim glow of the much fainter planets.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

Serabyn and colleagues got around this problem by using a "vortex coronagraph", which blocks out the light from a star and removes much of the diffraction pattern from the image.    From Wordnik.com.  [physicsworld.com: all content] Reference

In 2004, the coronagraph in the High Resolution Camera on Hubble's Advanced Camera for Surveys produced the first-ever resolved visible-light image of the region around Fomalhaut.    From Wordnik.com.  [Aero-News Network] Reference

'breadboard' of the coronagraph - which will be capable of spectroscopy as well as high-resolution imaging.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

The image was captured by astronomers at the University of California, Berkeley, US, and NASA’s Goddard Space Flight Center using Hubble’s coronagraph.    From Wordnik.com.  [Lord of the Stellar Rings | Impact Lab] Reference

We observed it with the HST/ACS coronagraph.    From Wordnik.com.  [NASA Watch: Keith Cowing: December 2004 Archives] Reference