Media Information
 
 
 
Collection:
NASA Astronomy Picture of the Day Collection
Title:
Upsilon Andromedae: An Extra-Solar System
Explanation:
Yesterday, astronomers announced [ http://cfa-www.harv…] the discovery of the first system of planets around a normal star other than our Sun [ http://www.seds.org…]. Previously, only single planet star systems [ http://www.physics.…] had been found. Subtle changes in the wobble of Upsilon Andromedae [ http://www.physics.…], a Sun-like star in the constellation [ http://www.astro.wi…] of Andromeda [ http://www.astro.wi…], allowed astronomers led by R. Paul Butler [ http://astro.berkel…] (AAO [ http://www.aao.gov.…]) and Geoffrey W. Marcy [ http://cannon.sfsu.…] (SFSU [ http://cannon.sfsu.…] /UCB [ http://astron.berke…]) to make the breakthrough. This star system is quite different from our own Solar System [ http://antwrp.gsfc.…], however. All three detected planets have masses near or above Jupiter [ http://www.seds.org…]. The discovery [ http://science.nasa…] implies that multiple-planet systems [ http://antwrp.gsfc.…] are quite common, increasing speculation that life-bearing [ http://cmex-www.arc…] planets similar to Earth [ http://antwrp.gsfc.…] may one day be found. The drawing above is an artist's depiction of the Upsilon Andromedae [ http://antwrp.gsfc.…http://adsabs.harva…] system and its innermost planet. This planet orbits unexpectedly close to its parent star.
Credit and Copyright:
Lynette Cook [ mailto:lrcook@sirius .com ]
keyword:
galaxies
keyword:
CCDs
facet_where:
Jupiter
facet_where:
Goddard Space Flight Center (GSFC)
facet_what:
Earth
facet_what:
Sun
facet_what:
Andromeda
facet_what:
Jupiter
facet_what:
SIRIUS
facet_what:
ASTRON
facet_what:
solar system
facet_what:
Upsilon Andromedae
original url:
http://antwrp.gsfc.…
UID:
SPD-APOD-ap990416

Upsilon Andromedae: An Extra-Solar System
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