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檔案:Sedna-NASA.JPG

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概

述 Sedna was discovered from an image dated 2003-11-14 at coordinates 03 15 10.09 +05 38 16.5. The 3 overexposed stars are apparent magnitude 13. The "bright star" near Sedna is apmag 14.9 and about the same magnitude as Pluto. (Wikisky image of this region)
The picture shows an area of the sky equal to the area covered by a pinhead held at arm's length. Sedna is too faint to be seen by all but the most powerful amateur telescopes.
期 二〇〇五年四月一八日 (原始上傳日期)
碼

Caltech animated gif of the Sedna discovery images (True source image using green circle from Caltech website)

http://photojournal.jpl.nasa.gov/catalog/PIA05568 (Samuel Oschin Telescope 2003-11-14. Rotated and flipped; using yellow arrows)
作者 This is the discovery image of Sedna taken with the Palomar Observatory's 48-inch Schmidt Telescope (now called the Samuel Oschin Telescope). JPL public web sites (public sites ending with a jpl.nasa.gov address)
其他版本

The BBC has an image cropped from licensed image below. The original uploader claimed this as the source;

Larger version uploaded by Evercat 15:39, 26 Nov 2004 (UTC)

PNG version which is both smaller in filesize and lossless is at Sedna-photo.png, however, this JPG should be the one used for thumbnails in articles, as it produces a much smaller (in bytes) thumbnail.

權

Public domain 本作品由NASA創作，屬於公有領域。根據NASA的版權政策：“NASA的創作除非另有聲明否則不受版權保護。”（參見：Template:PD-USGov/zh，NASA版權政策或JPL圖像使用政策）
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揀日尋檔。

日時縮度用戶註
今二〇〇五年一〇月三〇日 （日） 一一時四四分於二〇〇五年一〇月三〇日 （日） 一一時四四分之縮八七四矩六六五（一九九 KB）Bsmuc64ger~commonswikiImage of Sedna. Larger version uploaded by Evercat 15:39, 26 Nov 2004 (UTC) PNG version which is both smaller in filesize and lossless is at Image:Sedna-photo.png, however, this JPG should be the one used for thumbnails in articles, as it produces a much
二〇〇五年四月一八日 （一） 〇二時三三分於二〇〇五年四月一八日 （一） 〇二時三三分之縮八七四矩六六五（一九九 KB）Smartech~commonswikiImage of Sedna from BBC web site ([http://news.bbc.co.uk/1/hi/sci/tech/3511678.stm http://news.bbc.co.uk/1/hi/sci/tech/3511678.stm]); they claim it is a NASA image... Larger version uploaded by Evercat 15:39, 26 Nov 2004 (UTC) PNG v

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