File:2004 GU9 CFHT 2007-02-09 annotated.gif
此为最大尺寸。
2004_GU9_CFHT_2007-02-09_annotated.gif （660 × 473像素，文件大小：935 KB，MIME类型：image/gif、循环、4帧、1.6秒）
摘要
| 描述 |
English: Timelapse of near-Earth asteroid/Earth quasi-satellite 2004 GU9 moving across the sky in images taken by the Canada-France-Hawaii Telescope (CFHT) on 9 February 2007. Each frame is a 300-second exposure in the r-band filter, taken in 6-minute intervals. Due to the asteroid's rapid motion and long exposure time of each image, the asteroid appears streaked along its direction of motion. The white specks and pixels that sporadically appear are image artifacts caused by cosmic rays. The image is oriented North up and East left. |
| 日期 | |
| 来源 | Raw images provided by the Canadian Astronomy Data Centre's Solar System Object Image Search. |
| 作者 | CFHT Legacy Survey/CFHT/Canadian Astronomy Data Centre |
| 授权 (二次使用本文件) |
This image has been publicly provided from the Canadian Astronomy Data Centre, which states that "Data held in the CADC archive are open as part of the Government of Canada's Open Science Commitment. Data deposited into the CADC archive are public domain and made available under the Creative Commons License CC BY 4.0." (https://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/about.html) |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2024年12月19日 (四) 06:17 | | 660 × 473（935 KB） | Nrco0e | Uploaded a work by CFHT Legacy Survey/CFHT/Canadian Astronomy Data Centre from https://www.cadc-ccda.hia-iha.nrc-cnrc.gc.ca/en/ssois/results.html?lang=en&object=2004+GU9&search=bynameall&epoch1=2007-02-09&epoch2=2007-02-10&eellipse=&eunits=arcseconds&extres=no&xyres=no with UploadWizard |
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