Sentences with phrase «of background stars»

There is, therefore, a significant risk that multiple stars will be located in a given optimal aperture and thus that a given star is contaminated by a number of background stars.

Specifically, they analyzed radio occultations — made when Voyager 2 sent radio waves through the rings to be detected back on Earth — and stellar occultations, made when the spacecraft measured the light of background stars shining through the rings, which helps reveal how much material they contain.

As an exoplanet passes in front of a more distant star, its gravity causes the trajectory of the starlight to bend, and in some cases results in a brief brightening of the background star as seen by a telescope.

«Fortunately, the planetary signal predicts how fast the apparent positions of the background star and planetary host star will separate, and our observations have confirmed this prediction.

As an exoplanet passes in front of a more distant star, its gravity causes the trajectory of the starlight to bend, and in some cases results in a brief brightening of the background star as seen by the observatory.

We note that the population of background stars in CoRoT is 3 mag fainter than those of Brown.

These images of the background star may be distorted, brightened and multiplied depending on the alignment between the foreground lens and the background source.

When this ancient object passes in front of a background star, the star's light dips — like a mini-eclipse — allowing the astronomers to tease out the mystery world's size, shape and reflectivity.

Einstein's work piqued the interest of English astronomer Arthur Eddington, who recognized a great opportunity to test for this light deflection: On May 29, 1919, the sun would conveniently undergo a solar eclipse, which would block out its overwhelming glare, while passing close to a bright group of background stars called the Hyades.

Dark cloud obscures hundreds of background stars.»

«It's very difficult to see these faint moving objects in front of thousands and thousands of background stars,» Parker says.

The duration and strength of such a «gravitational microlensing» event could reveal not only a rogue planet's existence but also its mass, as bigger worlds tend to create longer, stronger amplifications of a background star's light.

In fact, a black hole's intense gravitational field would counterintuitively magnify most of a background star's light rather than blocking it at all.

Like the deflection of a scale's needle, the deflection of the background star's light let astronomers calculate the white dwarf's mass (roughly 67.5 percent the mass of our sun).

The object's movement is circles as it crosses a field of background stars.

These materials are dense enough to effectively eclipse the light of background stars.

WFI's large field of view also captures a colossal number of background stars.

When the dwarf, named Stein 2051 B, passed in front of another star from Earth's perspective, Sahu's team followed the position of the background star.

The result is a short - lived brightening of the background star.

Astronomers will measure the mass by examining images of each of the background stars to see how far the stars are offset from their real positions in the sky.

Microlensing occurs when a foreground star amplifies the light of a background star that momentarily aligns with it.

A planetary companion around the foreground star can produce a variation in the brightening of the background star.

If the foreground star has planets, then the planets may also amplify the light of the background star, but for a much shorter period of time than their host star.

They used the light of a background star.