File:First ever image of a multi-planet system around a Sun-like star.tif

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摘要

描述
English: This image, captured by the SPHERE instrument on ESO’s Very Large Telescope, shows the star TYC 8998-760-1 accompanied by two giant exoplanets, TYC 8998-760-1b and TYC 8998-760-1c. This is the first time astronomers have directly observed more than one planet orbiting a star similar to the Sun.

The two planets are visible as two bright dots in the centre (TYC 8998-760-1b) and bottom right (TYC 8998-760-1c) of the frame, noted by arrows. Other bright dots, which are background stars, are visible in the image as well. By taking different images at different times, the team were able to distinguish the planets from the background stars.

The image was captured by blocking the light from the young, Sun-like star (top-left of centre) using a coronagraph, which allows for the fainter planets to be detected. The bright and dark rings we see on the star’s image are optical artefacts.
Italiano: Questa immagine, catturata dallo strumento SPHERE installato su una unità del Very Large Telescope dell'ESO, mostra la stella TYC 8998-760-1 orbitata da due esopianeti giganti, TYC 8998-760-1b e TYC 8998-760-1c. Questa è la prima volta che gli astronomi hanno osservato direttamente più di un pianeta in orbita attorno a una stella simile al Sole. I due pianeti sono visibili come due punti luminosi al centro (TYC 8998-760-1b) e in basso a destra (TYC 8998-760-1c) della cornice, contrassegnati da frecce. Anche altri punti luminosi, che sono stelle sullo sfondo, sono visibili nell'immagine. Scattando immagini diverse in momenti diversi, il team è stato in grado di distinguere i pianeti dalle stelle sullo sfondo. L'immagine è stata catturata bloccando la luce della stella (in alto a sinistra del centro) utilizzando un coronografo, che consente di rilevare i pianeti più deboli. Gli anelli luminosi e scuri che si vedono sull'immagine della stella sono artefatti ottici.
日期
來源 https://www.eso.org/public/images/eso2011b/
作者 ESO/Bohn et al.

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姓名標示: ESO/Bohn et al.
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說明

添加單行說明來描述出檔案所代表的內容
围绕类似太阳系恒星的多行星系统的第一张图像

在此檔案描寫的項目

描繪內容

太陽相似體

行星

太陽系外行星 中文 (已轉換拼寫)

多媒體型式

image/tiff

校驗和

b56435da3ddaeca96a2d87b10bc85639468394f3

斷定方法：​SHA-1 中文 (已轉換拼寫)

資料大小

927,354 位元組

高度

990 像素

寬度

990 像素

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日期/時間縮⁠圖尺寸使用者備⁠註
目前2020年7月24日 (五) 14:50於 2020年7月24日 (五) 14:50 版本的縮圖990 × 990（906 KB）NwbeesonUploaded a work by ESO/Bohn et al. from https://www.eso.org/public/images/eso2011b/ with UploadWizard

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