File:BepiColombo Earth Flyby 10 april 2020.gif
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摘要
| 描述 |
English: A sequence of images taken by one of the MCAM selfie cameras on board of the European-Japanese Mercury mission BepiColombo as the spacecraft zoomed past the planet during its first and only Earth flyby.
Images in the sequence were taken in intervals of a few minutes from 03:03 UTC until 04:15 UTC on 10 April 2020, shortly before the closest approach. The distance to Earth diminished from around 26,700 km to 12,800 km during the time the sequence was captured. In these images, Earth appears in the upper right corner, behind the spacecraft structure and its magnetometer boom, and moves slowly towards the upper left of the image, where the medium-gain antenna is also visible. The manoeuvre, first of an overall nine flybys but the only one at Earth, helped steer the spacecraft towards Venus as it gradually closes in on its target orbit around Mercury. During its seven-year cruise to the smallest and innermost planet of the Solar System, BepiColombo will twice use the gravity of Venus and six times that of Mercury to break against the gravitational pull of the Sun. This constant need to break requires either a lot of fuel or a complicated trajectory with many flybys, otherwise BepiColombo would not be able to enter the correct orbit around Mercury. |
| 日期 | 摄于2020年4月10日 |
| 来源 | http://www.esa.int/ESA_Multimedia/Images/2020/04/BepiColombo_s_last_close-ups_of_Earth_during_flyby (image link) |
| 作者 | ESA/BepiColombo/MTM |
许可协议
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This media was created by the European Space Agency (ESA).
Where expressly so stated, images or videos are covered by the Creative Commons Attribution-ShareAlike 3.0 IGO (CC BY-SA 3.0 IGO) licence, ESA being an Intergovernmental Organisation (IGO), as defined by the CC BY-SA 3.0 IGO licence. The user is allowed under the terms and conditions of the CC BY-SA 3.0 IGO license to Reproduce, Distribute and Publicly Perform the ESA images and videos released under CC BY-SA 3.0 IGO licence and the Adaptations thereof, without further explicit permission being necessary, for as long as the user complies with the conditions and restrictions set forth in the CC BY-SA 3.0 IGO licence, these including that:
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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   本文件采用知识共享署名-相同方式共享 3.0 政府间组织许可协议授权。 署名: ESA/BepiColombo/MTM, CC BY-SA IGO 3.0
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文件历史
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2020年4月14日 (二) 16:10 | | 1,024 × 1,024（9.81 MB） | Huntster | Update with final version of this, featuring the full flyby sequence. |
| 2020年4月11日 (六) 13:49 |  | 1,024 × 1,024（4.51 MB） | Darseno | Uploaded a work by European Space Agency from http://www.esa.int/ESA_Multimedia/Images/2020/04/BepiColombo_s_last_close-ups_of_Earth_during_flyby with UploadWizard |
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