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File:How many stars will there be in the second Gaia data release? ESA392158.jpg

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原始文件 （6,260 × 4,134像素，文件大小：2.39 MB，MIME类型：image/jpeg）

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描述
English: This graphic summaries the content of the second Gaia data release scheduled for publication on 25 April 2018. It contains information nearly 1.7 billion stars. For many of the stars, this includes their position and brightness on the sky, their colour, surface temperature and velocity. The dataset also includes the positions of known Solar System objects such as asteroids. Full details:How many stars to expect in Gaia's second data release
日期
来源 http://www.esa.int/spaceinimages/Images/2018/04/How_many_stars_will_there_be_in_the_second_Gaia_data_release
作者 European Space Agency
授权
(二次使用本文件)		 ESA,CC BY-SA 3.0 IGO
Title
InfoField
How many stars will there be in the second Gaia data release?
Mission
InfoField
Gaia
Activity
InfoField
Space Science

许可协议
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:
  • the source of the image or video is duly credited (Examples: "Credit: ESA/Rosetta/NavCam – CC BY-SA IGO 3.0", "ESA/DLR/FU Berlin, CC BY-SA IGO 3.0", "ESA/Photographer’s name, CC BY-SA IGO 3.0"), and
  • a direct link to the CC BY-SA 3.0 IGO license text is provided, and
  • if changes were made to the original image or video, there is a clear statement on the Adaptation indicating that changes were made to the original content; Adaptations must be Distributed or Publicly Performed under the Applicable License, as set forth in Article 4b of the CC BY-SA 3.0 IGO licence.
See the ESA Creative Commons copyright notice for complete information, and this article for additional details.
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当前2018年4月5日 (四) 15:552018年4月5日 (四) 15:55版本的缩略图6,260 × 4,134（2.39 MB）FæEuropean Space Agency, Id 392158, http://www.esa.int/spaceinimages/Images/2018/04/How_many_stars_will_there_be_in_the_second_Gaia_data_release, User:Fæ/Project_list/ESA

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