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File:A young star takes centre stage.jpg

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原始檔案 （716 × 718 像素，檔案大小：188 KB，MIME 類型：image/jpeg）

摘要

描述
English: With its helical appearance resembling a snail’s shell, this reflection nebula seems to spiral out from a luminous central star in this new NASA/ESA Hubble Space Telescope image. The star in the centre, known as V1331 Cyg and located in the dark cloud LDN 981 — or, more commonly, Lynds 981 — had previously been defined as a T Tauri star. A T Tauri is a young star — or Young Stellar Object — that is starting to contract to become a main sequence star similar to the Sun. What makes V1331 Cyg special is the fact that we look almost exactly at one of its poles. Usually, the view of a young star is obscured by the dust from the circumstellar disc and the envelope that surround it. However, with V1331 Cyg we are actually looking in the exact direction of a jet driven by the star that is clearing the dust and giving us this magnificent view. This view provides an almost undisturbed view of the star and its immediate surroundings allowing astronomers to study it in greater detail and look for features that might suggest the formation of a very low-mass object in the outer circumstellar disc.
日期
來源 http://spacetelescope.org/images/potw1509a/
作者 ESA/Hubble, NASA, Karl Stapelfeldt (GSFC), B. Stecklum and A. Choudhary (Thüringer Landessternwarte Tautenburg, Germany)

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描繪內容

V1331 Cygni 英文

金牛T星 中文 (已轉換拼寫)

反射星雲 Chinese (Hong Kong) (已轉換拼寫)

著作權狀態 繁體中文 (已轉換拼寫)

有著作權 繁體中文 (已轉換拼寫)

特許條款

共享創意署名4.0國際 Chinese (Hong Kong) (已轉換拼寫)

多媒體型式 繁體中文 (已轉換拼寫)

image/jpeg

校驗和 繁體中文 (已轉換拼寫)

1946a73186c13a59b5ac705cb82328298b26b0fa

斷定方法：​SHA-1 中文 (已轉換拼寫)

資料大小 Chinese (Hong Kong) (已轉換拼寫)

192,790 位元組

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718 像素

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716 像素

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