File:HEAO-2 Image of the Great Nebula in Andromeda, M31 Taken by the High Energy Astronomy Observatory 7995529.jpg
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![File:HEAO-2 Image of the Great Nebula in Andromeda, M31 Taken by the High Energy Astronomy Observatory 7995529.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/HEAO-2_Image_of_the_Great_Nebula_in_Andromeda%2C_M31_Taken_by_the_High_Energy_Astronomy_Observatory_7995529.jpg/747px-HEAO-2_Image_of_the_Great_Nebula_in_Andromeda%2C_M31_Taken_by_the_High_Energy_Astronomy_Observatory_7995529.jpg?20170102221903)
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[edit]DescriptionHEAO-2 Image of the Great Nebula in Andromeda, M31 Taken by the High Energy Astronomy Observatory 7995529.jpg |
English: Both of the High Energy Astronomy Observatory (HEAO) 2/Einstein Observatory imaging devices were used to observe the Great Nebula in Andromeda, M31. This image is a wide field x-ray view of the center region of M31 by the HEAO-2's Imaging Proportional Counter. The HEAO-2, the first imaging and largest x-ray telescope built to date, was capable of producing actual photographs of x-ray objects. Shortly after launch, the HEAO-2 was nicknamed the Einstein Observatory by its scientific experimenters in honor of the centernial of the birth of Albert Einstein, whose concepts of relativity and gravitation have influenced much of modern astrophysics, particularly x-ray astronomy. The HEAO-2, designed and developed by TRW, Inc. under the project management of the Marshall Space Flight Center, was launched aboard an Atlas/Centaur launch vehicle on November 13, 1978. |
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Source | https://archive.org/details/MSFC-7995529 |
Author | NASA |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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