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テュケー (仮説上の惑星)

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Wikipedia definition

1. Tyche (hypothetical planet)Tyche is the nickname given to a hypothetical gas giant planet located in the Solar System's Oort cloud, first proposed in 1999 by astronomer John Matese of the University of Louisiana at Lafayette. Matese and his colleague Daniel Whitmire argue that evidence of Tyche's existence can be seen in a supposed bias in the points of origin for long-period comets.
Read “Tyche (hypothetical planet)” on English Wikipedia
Read “テュケー (仮説上の惑星)” on Japanese Wikipedia
Read “Tyche (hypothetical planet)” on DBpedia

7.55334229944386

6 strokes. JLPT N1. Jōyō kanji, taught in grade 5.

仮

sham, temporary, interim, assumed (name), informal

Kun: かり、かり-

On: カ、ケ

2.843953327759806

14 strokes. JLPT N3. Jōyō kanji, taught in grade 4.

説

opinion, theory, explanation, rumor

Kun: と.く

On: セツ、ゼイ

0.10177747082984988

3 strokes. JLPT N5. Jōyō kanji, taught in grade 1.

上

above, up

Kun: うえ、 -うえ、うわ-、かみ、あ.げる、 -あ.げる、あ.がる、 -あ.がる、あ.がり、 -あ.がり、のぼ.る、のぼ.り、のぼ.せる、のぼ.す、たてまつ.る

On: ジョウ、ショウ、シャン

4.5189197048453345

12 strokes. JLPT N1. Jōyō kanji, taught in junior high.

惑

beguile, delusion, perplexity

Kun: まど.う

On: ワク

2.4542910108683804

9 strokes. JLPT N2. Jōyō kanji, taught in grade 2.

星

star, spot, dot, mark

Kun: ほし、 -ぼし

On: セイ、ショウ

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