Buchcover von Hd 217107 B
Buchtitel:

Hd 217107 B

Aldebaran, Alpha Arietis, Beta Pictoris

VolutPress (14.08.2013 )

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ISBN-13:

978-613-9-11230-2

ISBN-10:
6139112303
EAN:
9786139112302
Buchsprache:
Englisch
Klappentext:
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HD 217107 b is an extrasolar planet approximately 64 light-years away from Earth in the constellation of Pisces (the Fish). The planet was discovered orbiting the star HD 217107 approximately every seven days, classifying the planet as a hot Jupiter. Because of the planet's somewhat eccentric orbit, scientists were able to confirm another planet within the system (HD 217107 c).As with the majority of extrasolar planet discoveries so far, it was found by detecting small variations in the radial velocity of the star it orbits, caused by the tug of its gravity. A study of the radial velocity of HD 217107 carried out in 1998 revealed that its motion along the line of sight varied over a 7.1 day cycle. The period and amplitude of this variation indicated that it was caused by a planetary companion in orbit around the star, with a minimum mass slightly greater than that of Jupiter. The planet's mean distance from the star is less than one fifth of Mercury's distance from the Sun.
Verlag:
VolutPress
Webseite:
http://www.betascript-publishing.com
Herausgegeben von:
Proteus Valère Kresten
Seitenanzahl:
88
Veröffentlicht am:
14.08.2013
Lagerbestand:
Lieferbar
Kategorie:
Astronomie
Preis:
34,00 €
Stichworte:
HD, Alpha, Beta, B, Aldebaran, Arietis, Pictoris, 217107

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