Corrective Optics Space Telescope Axial Replacement
Optical correction instrument / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Corrective Optics Space Telescope Axial Replacement?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
"COSTAR" redirects here. For Committee on Space Research (COSPAR), see COSPAR.
The Corrective Optics Space Telescope Axial Replacement (COSTAR) is an optical correction instrument designed and built by NASA. It was created to correct the spherical aberration of the Hubble Space Telescope's primary mirror, which incorrectly focused light upon the Faint Object Camera (FOC), Faint Object Spectrograph (FOS), and Goddard High Resolution Spectrograph (GHRS) instruments.[1]
It was flown via shuttle to the telescope in the servicing mission STS-61, on December 2, 1993, and successfully installed over a period of eleven days.