Astronomical Journal

Giant exoplanet hunters: Look for debris disks

There's no map showing all the billions of exoplanets hiding in our galaxy—they're so distant and faint compared to their stars, it's hard to find them. Now, astronomers hunting for new worlds have established a possible ...

dateOct 11, 2017 in Astronomy
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The super-Earth that came home for dinner

It might be lingering bashfully on the icy outer edges of our solar system, hiding in the dark, but subtly pulling strings behind the scenes: stretching out the orbits of distant bodies, perhaps even tilting the entire solar ...

dateOct 05, 2017 in Astronomy
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Astronomers measure new distances to nearby stars

Astronomers from the U.S. Naval Observatory (USNO), in collaboration with others from the REsearch Consortium On Nearby Stars (RECONS), have determined new distances to a group of faint young stars located within 25 parsecs ...

dateOct 05, 2017 in Astronomy
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Astronomers resolve mystery of white dwarf's mass

New observations of the white dwarf/red dwarf binary star 40 Eridani BC by astronomers at the U.S. Naval Observatory (USNO) have revealed new, definitive values for the orbital period and masses of the components of this ...

dateSep 11, 2017 in Astronomy
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Hidden stars may make planets appear smaller

In the search for planets similar to our own, an important point of comparison is the planet's density. A low density tells scientists a planet is more likely to be gaseous like Jupiter, and a high density is associated with ...

dateJul 11, 2017 in Astronomy
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