News tagged with stellar system

Planet 'reared' by four parent stars

Growing up as a planet with more than one parent star has its challenges. Though the planets in our solar system circle just one star—our sun—other more distant planets, called exoplanets, can be reared ...

Mar 04, 2015
4.8 / 5 (18) 2

Estimating the magnetic field of an exoplanet

Scientists developed a new method which allows to estimate the magnetic field of a distant exoplanet, i.e., a planet, which is located outside the Solar system and orbits a different star. Moreover, they ...

Nov 20, 2014
4.7 / 5 (10) 1

Bright star reveals new exoplanet

An international team of astronomers at Stellar Astrophysics Centre in Aarhus, Denmark, have discovered a new exoplanet, christened "Kepler-410A b." The planet is about the size of Neptune and orbits the ...

Jan 22, 2014
3.8 / 5 (5) 0

How engineers revamped Spitzer to probe exoplanets

(Phys.org) —Now approaching its 10th anniversary, NASA's Spitzer Space Telescope has evolved into a premier observatory for an endeavor not envisioned in its original design: the study of worlds around ...

Sep 25, 2013
4.9 / 5 (14) 1 | with audio podcast

Spitzer discovers young stars with a 'hula hoop'

(Phys.org) —Astronomers using NASA's Spitzer Space Telescope have spotted a young stellar system that "blinks" every 93 days. Called YLW 16A, the system likely consists of three developing stars, two of ...

Jul 31, 2013
4.3 / 5 (6) 0 | with audio podcast

Stellar winds may electrify exoplanets

(Phys.org) —The strangest class of exoplanets found to date might be even stranger than astronomers have thought. A new model suggests that they are partially heated by electric currents linked to their host stars. Florida ...

Jun 05, 2013
4.5 / 5 (11) 23 | with audio podcast

New Greek observatory sheds light on old star

(Phys.org)—Continuing a tradition stretching back more than 25 centuries, astronomers have used the new 2.3-m 'Aristarchos' telescope, sited at Helmos Observatory (2340m high) in the Pelοponnese Mountains ...

Feb 28, 2013
3 / 5 (2) 0

The origin and maintenance of a retrograde exoplanet

Astronomers have used the Subaru Telescope to show that the HAT-P-7 planetary system, which is about 1040 light years from Earth in the constellation Cygnus, includes at least two giant planets and one companion ...

Jan 25, 2013
5 / 5 (4) 2 | with audio podcast