Soubor:A young star takes centre stage.jpg

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Popis
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.
Datum
Zdroj http://spacetelescope.org/images/potw1509a/
Autor ESA/Hubble, NASA, Karl Stapelfeldt (GSFC), B. Stecklum and A. Choudhary (Thüringer Landessternwarte Tautenburg, Germany)

Licence


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Popisky

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Položky vyobrazené v tomto souboru

zobrazuje

V1331 Cygni angličtina

Hvězda typu T Tauri

reflexní mlhovina

kontrolní součet

1946a73186c13a59b5ac705cb82328298b26b0fa

metoda určení: SHA-1

objem dat

192 790 bajt

výška

718 pixel

šířka

716 pixel

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Datum a časNáhledRozměryUživatelKomentář
současná10. 12. 2019, 22:14Náhled verze z 10. 12. 2019, 22:14716 × 718 (188 KB)wikimediacommons>BevinKaconactual size from source

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