... 2001 May 2 . Planet Building in HD 100546 . ... NOAO , NASA/GSFC ), CTIO , ESO , NSF . Explanation: More than 100 billion boulders may be swarming in the disk around nearby star HD 100546 . ... For an Earth-like planet in such a hostile environment, the sky would be lit continuously with streaking meteors and the ground would rumble continuously with impacts . ... The bright light and six-pointed diffraction spikes from the central star have been removed from the false-color image. ...

... Over the past 16 years, astronomers have found more than 700 planets outside of our Solar System. We call these distant worlds exo-planets . ... For example, they can observe how a star dims when a planet passes in front of it. ... In this new method, astronomers use stars like magnifying glasses! ... And astronomers can tell if the star that is acting like a magnifying glass has a planet in orbit around it, as the power of the magnification is even greater! ...

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .€а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... Publications of the ASP (PASP) . ... Planet-Building on the Grandest Scales . ... The extrasolar planets discovered to this time are believed to be giant gaseous planets similar to Jupiter and Saturn. ... This, together with the large masses of the extrasolar planets discovered to date, has led researchers to conclude that all the extrasolar worlds are giant gaseous planets similar to Jupiter and Saturn. ...

... Figure: Children from the Armstrong Primary School, Armagh, at the Launch of the Human Orrery on 26 November 2004. The innovative `Dance of the Planets' was choreographed by dance teacher Jennifer Rooney. ... The Armagh Observatory Human Orrery is believed to be the first large outdoor exhibit designed to show with precision the elliptical orbits and changing relative positions of the planets and other solar system bodies versus time. ...

... Planet Building in HD 100546 . ... NOAO , NASA/GSFC ), CTIO , ESO , NSF Explanation: More than 100 billion boulders may be swarming in the disk around nearby star HD 100546 . In a scene thought similar to the early years of our own Solar System , ever larger rocks are growing by colliding and accreting dust as the messy business of planet formation appears to be underway. ... Publications with keywords: planetesmals - dust - planets . Publications with words: planetesmals - dust - planets . ...