Sedna-discovery-150.jpg
NASA
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連続写真 
[[:ja::Image:Sedna Discovery Image.jpg]]

'''セドナ'''('''Sedna''')

海王星以遠天体セドナの発見時の画像。

下の3枚の画像は、11月14日6:32から9:38（標準時）にかけて撮影されたものであり、セドナがわずかに移動していることが分かる。

より長時間の観測により、太陽の周りを回る公転周期は約10,500年と分かった。

'''Original URL''': [ Most Distant Object in Solar System Discovered]

'''Image Policy''': [ JPL Image Policy]

'''Original Caption Released with Image''': 
*These three panels show the first detection of the faint distant object dubbed "Sedna." Imaged on November 14th from 6:32 to 9:38 Universal Time, Sedna was identified by the slight shift in position noted in these three pictures taken at different times. Subsequent observations at longer time intervals provided the information necessary to deduce the nature of Sedna's 10,500 year orbit around the Sun. The field of view of each frame is 3.4 arcminutes square, and each pixel is 1.0 arcsecond. 

'''Image Credit''': 
*NASA/Caltech
commons
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Sedna discovery 150, 90377 Sedna
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ContinuumSedna Discovery Image.jpgSednaImage of the discovery of the Neptune-descendent Sedna.The three images below are taken on 14 November, from 6:32 to 9:38 , indicating that Sedna was slightly moved.Longer observations determined that the orbital period around the Sun was about 10,500 years."Original URL": "Most Distant Object in Solar System Discovered""Image Policy": "JPL Image Policy""Original Caption Released with Image":*These three panels show the first detection of the faint distant object dubbed "Sedna"."Imaged on November 14th from 6:32 to 9:38 Universal Time, Sedna was identified by the slight shift in position noted in these three pictures taken at different times.Subsequent observations at length time intervals provided the information required to deduce the nature of Sedna's 10,500 years orbit around the Sun.The field of view of each frame is 3.4 arcminutes square, and each pixel is 1.0 arcsecond.Image Credit*NASA/Caltech
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セドナの発見150, 90377年
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sedna day shift