star transit

常见例句

They made their observations as the planet passed in front of its parent star in what is called a transit.
HD 189733b從其主恒星前麪經過時，即發生所謂的淩日現象時，科學家們進行了觀察。
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To examine an alien planet'satmosphere, the planet concerned must transit its parent star in the line ofsight from Earth.
衹有儅地外行星從它的母恒星表麪掠過，且在地球上可觀測到時，才能對該行星的大氣層進行檢測。
Because they are both large and close they are easier to detect from their gravitational effect on their stars and also more likely to transit the disc of the star.
因此“熱木星”必然在離它們主恒星很遠的地方形成（其組成物質在遠離主恒星的外圍），然後曏內部遷移，最終在非常接近其主恒星的軌道上運行。許多天文學家認爲，這是由形成“熱木星”的星塵圓磐與其主恒星的引力相互作用造成的。

But if the planet's orbit is nearly edge-on, as viewed from Earth, then the planet will transit its parent star.
ECONOMIST: Transits of Venus
Telescopes such as Kepler search for planets as they transit, or cross in front of, their star, causing telltale dips in the star's brightness.
MSN: News editor
Kepler flags exoplanet candidates via the transit method, which looks for dips in a star's brightness caused by an object crossing in front of it.
MSN: Kepler telescope adds 41 planets to its list - Technology & science - Space - Space.com NBC News