Kepler-35 planetary system, artwork
Kepler-35 planet system, artwork. This Saturn-size planet orbits a binary star system (top). The larger star is similar in size to the Sun, while the smaller star's diameter is 4/5th that of the Sun. The stars orbit and eclipse each other every 21 days. The planet orbits every 131 days, though climate and seasons would change greatly during its orbit due to the presence of two suns. This system is one of a new class of 'circumbinary' planets (though orbiting binary systems), of which there may be millions in our galaxy. Kepler-35 is 5400 lights years from Earth, in the constellation of Cygnus. Artwork published 2012.
© LYNETTE COOK/SCIENCE PHOTO LIBRARY
Cygnus and Lyra constellations
Cygnus and Lyra constellations. Cygnus, the swan, is at centre left, with Lyra, the lyre, at centreright. The brightest star is Cygnus is Deneb(Alpha Cygni, upper left). This is one of the mostpowerful stars known, and is one of the brighteststars in the night sky despite its great distanceof over 3000 light years. The brightest star inLyra is Vega (Alpha Lyrae). This is the fifthbrightest star in the night sky but is far closerthan Deneb, at just 26 light years. Cygnus followsthe path of the Milky Way from top left to bottomright. The Milky Way in this region is studdedwith nebulae (red), star clusters and dark dustclouds.
© Eckhard Slawik/Science Photo Library
ancients, animals, antiquities, antiquity, architectural, architectural exterior
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