File:Close-up of Three Protoplanetary Disks in the Orion Nebula (1992-29-87).tiff

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Captions

Captions

A NASA Hubble Space Telescope picture of three protoplanetary disks, called "proplyds" in the Orion Nebula, a star-forming region 1,500 light-years away. Each proplyd appears as thick disk with a hole in the middle where the cool star is located.

Summary[edit]

Description
English: A NASA Hubble Space Telescope picture of three protoplanetary disks, called "proplyds" in the Orion Nebula, a star-forming region 1,500 light-years away. Each proplyd appears as thick disk with a hole in the middle where the cool star is located. Radiation from nearby hot stars "boils off" material from the disk's surface. This material is then blown back into a comet-like tail by a stellar "wind" of radiation and subatomic particles streaming from the hot stars. This material has only recently become illuminated by the hottest star of the Orion Nebula. Each picture is only 12.07 light-days across. Each picture element (pixel) is 50 astronomical units, or fifty times the average distance from the Earth to the Sun. This color photograph is a composite of separate images taken at the wavelengths of the two abundant elements in the nebula: Hydrogen and Oxygen, and the red image was made to isolate the star's image. The images were taken with HST's Wide Field and Planetary Camera (in wide field mode), on August 13 and 14, 1991.
Date 16 December 1992 (upload date)
Source Close-up of Three Protoplanetary Disks in the Orion Nebula
Author Credit: C.R. O'Dell (Rice University), and NASA
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Licensing[edit]

Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.

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