파일:Best image of bright quasar 3C 273.jpg

문서 내용이 다른 언어로는 지원되지 않습니다.
위키백과, 우리 모두의 백과사전.

원본 파일(705 × 696 픽셀, 파일 크기: 208 KB, MIME 종류: image/jpeg)

파일 설명

설명
English: This image from Hubble’s Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation of Virgo (The Virgin). Its light has taken some 2.5 billion years to reach us. Despite this great distance, it is still one of the closest quasars to our home. It was the first quasar ever to be identified, and was discovered in the early 1960s by astronomer Allan Sandage.

The term quasar is an abbreviation of the phrase “quasi-stellar radio source”, as they appear to be star-like on the sky. In fact, quasars are the intensely powerful centres of distant, active galaxies, powered by a huge disc of particles surrounding a supermassive black hole. As material from this disc falls inwards, some quasars — including 3C 273 — have been observed to fire off super-fast jets into the surrounding space. In this picture, one of these jets appears as a cloudy streak, measuring some 200 000 light-years in length.

Quasars are capable of emitting hundreds or even thousands of times the entire energy output of our galaxy, making them some of the most luminous and energetic objects in the entire Universe. Of these very bright objects, 3C 273 is the brightest in our skies. If it was located 30 light-years from our own planet — roughly seven times the distance between Earth and Proxima Centauri, the nearest star to us after the Sun — it would still appear as bright as the Sun in the sky.

WFPC2 was installed on Hubble during shuttle mission STS-125. It is the size of a small piano and was capable of seeing images in the visible, near-ultraviolet, and near-infrared parts of the spectrum.
날짜
출처 http://www.spacetelescope.org/images/potw1346a/
저자 ESA/Hubble & NASA

라이선스

w:ko:크리에이티브 커먼즈
저작자표시
저작자표시
ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
Conditions:
  • The full image or footage credit must be presented in a clear and readable manner to all users, with the wording unaltered (for example: "ESA/Hubble"). Web texts should be credited to ESA/Hubble (except when used by media). The credit should not be hidden or disassociated from the image footage. Links should be active if the credit is online. See the usage rights Q&A section on the ESA copyright page for guidance.
  • ESA/Hubble materials may not be used to state or imply the endorsement by ESA/Hubble or any ESA/Hubble employee of a commercial product or service.
  • ESA/Hubble requests a copy of the product sent to them to be indexed in their archive.
  • If an image shows an identifiable person, using that image for commercial purposes may infringe that person's right of privacy, and separate permission should be obtained from the individual.
  • If images or visuals are changed significantly from the original work (apart from resizing, cropping), we suggest that the changes are mentioned after the credit line. For example "Original image by ESA/Hubble (M. Kornmesser), warping and recolouring by NN".

Notes:

  • Note that this general permission does not extend to the use of ESA/Hubble's logo, which shall remain protected and may not be used or reproduced without prior and individual written consent of ESA/Hubble.
  • Also note that music, scientific papers and code on the esahubble.org site are not released under this license and can not be used for non-ESA/Hubble products.
  • By reproducing ESA/Hubble material, in part or in full, the user acknowledges the terms on which such use is permitted.
w:ko:크리에이티브 커먼즈
저작자표시
이 파일은 크리에이티브 커먼즈 저작자표시 4.0 국제 라이선스로 배포됩니다.
저작자표시: ESA/Hubble
이용자는 다음의 권리를 갖습니다:
  • 공유 및 이용 – 저작물의 복제, 배포, 전시, 공연 및 공중송신
  • 재창작 – 저작물의 개작, 수정, 2차적저작물 창작
다음과 같은 조건을 따라야 합니다:
  • 저작자표시 – 적절한 저작자 표시를 제공하고, 라이센스에 대한 링크를 제공하고, 변경사항이 있는지를 표시해야 합니다. 당신은 합리적인 방식으로 표시할 수 있지만, 어떤 방식으로든 사용권 허가자가 당신 또는 당신의 사용을 지지하는 방식으로 표시할 수 없습니다.

설명

이 파일이 나타내는 바에 대한 한 줄 설명을 추가합니다

이 파일에 묘사된 항목

다음을 묘사함

b81b74a100829ff6f012d92a25fe7c777a15a989

212,680 바이트

696 화소

705 화소

파일 역사

날짜/시간 링크를 클릭하면 해당 시간의 파일을 볼 수 있습니다.

날짜/시간섬네일크기사용자설명
현재2019년 12월 31일 (화) 18:172019년 12월 31일 (화) 18:17 판의 섬네일705 × 696 (208 KB)BevinKaconactual size from source
2013년 11월 20일 (수) 09:202013년 11월 20일 (수) 09:20 판의 섬네일1,280 × 1,264 (295 KB)JmencisomUser created page with UploadWizard

다음 문서 1개가 이 파일을 사용하고 있습니다:

이 파일을 사용하고 있는 모든 위키의 문서 목록

다음 위키에서 이 파일을 사용하고 있습니다:

메타데이터