| dbo:abstract |
Kepler-88 ist ein Stern im Sternbild Leier und befindet sich in einer Entfernung von etwas über 1200 Lichtjahren. Der Stern ist der Sonne ähnlich mit einer leicht geringeren Masse und Radius und entsprechend auch einer geringeren Leuchtkraft. Bei diesem Stern wurden im Jahre 2013 zwei Exoplaneten mithilfe des Weltraumteleskops Kepler entdeckt. Es ist das erste System, bei welchem ein Planet mittels Transit Timing Variation (TTV) entdeckt wurde. (de) Kepler-88 is a Sun-like star in the constellation of Lyra, with three confirmed planets. In April 2012, scientists discovered that a Kepler candidate known as KOI-142.01 (Kepler-88b) exhibited very significant transit-timing variations caused by a non-transiting planet. Timing variations were large enough to cause changes to transit durations to Kepler-88b as well. Large transit-timing variations helped to put tight constraints to masses of both planets. The non-transiting planet was further confirmed through the radial velocity method in November 2013. (en) ケプラー88 (英: Kepler-88) とは、こと座の方向に約1,243光年離れた場所に位置する、太陽に似ている恒星である。3つの太陽系外惑星が確認されている。 (ja) Kepler-88 è una stella simile al Sole con tre pianeti extrasolari confermati. Nell'aprile 2012 gli scienziati scoprirono che il pianeta extrasolare KOI-142.01 (Kepler-88 b) mostrava significative variazioni del tempo di transito, dovute alla presenza di un pianeta non transitante sul disco della stella. Le variazioni del tempo di transito erano abbastanza ampie, tanto da permettere una valutazione della massa di entrambi i pianeti. L'esistenza del pianeta non transitante fu poi confermata in novembre 2013 con il metodo della velocità radiale da astronomi dell'Osservatorio dell'Alta Provenza. Nel 2019 è stato scoperto presso l'osservatorio Keck (Keck I) , con il metodo della velocità radiale, un terzo pianeta orbitare attorno alla stella, . Si tratta di un gigante gassoso supergioviano con una massa minima tripla rispetto a quella di Giove e che orbita in 1431 giorni (3,92 anni) a una distanza di 2,46 UA dalla stella. (it) Kepler-88 é uma estrela parecida com o Sol na constelação de Lyra, com três planetas. Em abril de 2012, os cientistas descobriram que um candidato ao Kepler (Kepler-88b) exibia variações significativas no tempo de trânsito causadas por um planeta inerte. Grandes o suficiente para causar alterações em Kepler-88b também. Estas variações ajudaram a restringir as massas dos dois planetas. O planeta inerte foi confirmado pelo método da velocidade radial em novembro de 2013. (pt) 克卜勒88（Kepler-88）是天琴座內已知擁有兩顆系外行星的類太陽恆星。2012年4月科學家在該恆星旁發現行星候選天體 KOI-142.01（即克卜勒88b）有極為明顯的凌星時間變化。凌日時間的變化相當大，足以讓克卜勒88b改變凌星週期。這樣的狀態是量測兩顆行星質量的嚴謹限制條件。而另一顆不凌星的行星則於2013年11月以徑向速度法近一步證實。 (zh) |
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| rdfs:comment |
Kepler-88 ist ein Stern im Sternbild Leier und befindet sich in einer Entfernung von etwas über 1200 Lichtjahren. Der Stern ist der Sonne ähnlich mit einer leicht geringeren Masse und Radius und entsprechend auch einer geringeren Leuchtkraft. Bei diesem Stern wurden im Jahre 2013 zwei Exoplaneten mithilfe des Weltraumteleskops Kepler entdeckt. Es ist das erste System, bei welchem ein Planet mittels Transit Timing Variation (TTV) entdeckt wurde. (de) Kepler-88 is a Sun-like star in the constellation of Lyra, with three confirmed planets. In April 2012, scientists discovered that a Kepler candidate known as KOI-142.01 (Kepler-88b) exhibited very significant transit-timing variations caused by a non-transiting planet. Timing variations were large enough to cause changes to transit durations to Kepler-88b as well. Large transit-timing variations helped to put tight constraints to masses of both planets. The non-transiting planet was further confirmed through the radial velocity method in November 2013. (en) ケプラー88 (英: Kepler-88) とは、こと座の方向に約1,243光年離れた場所に位置する、太陽に似ている恒星である。3つの太陽系外惑星が確認されている。 (ja) Kepler-88 é uma estrela parecida com o Sol na constelação de Lyra, com três planetas. Em abril de 2012, os cientistas descobriram que um candidato ao Kepler (Kepler-88b) exibia variações significativas no tempo de trânsito causadas por um planeta inerte. Grandes o suficiente para causar alterações em Kepler-88b também. Estas variações ajudaram a restringir as massas dos dois planetas. O planeta inerte foi confirmado pelo método da velocidade radial em novembro de 2013. (pt) 克卜勒88（Kepler-88）是天琴座內已知擁有兩顆系外行星的類太陽恆星。2012年4月科學家在該恆星旁發現行星候選天體 KOI-142.01（即克卜勒88b）有極為明顯的凌星時間變化。凌日時間的變化相當大，足以讓克卜勒88b改變凌星週期。這樣的狀態是量測兩顆行星質量的嚴謹限制條件。而另一顆不凌星的行星則於2013年11月以徑向速度法近一步證實。 (zh) Kepler-88 è una stella simile al Sole con tre pianeti extrasolari confermati. Nell'aprile 2012 gli scienziati scoprirono che il pianeta extrasolare KOI-142.01 (Kepler-88 b) mostrava significative variazioni del tempo di transito, dovute alla presenza di un pianeta non transitante sul disco della stella. (it) |
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