Corrective Optics Space Telescope Axial Replacement

Corrective Optics Space Telescope Axial Replacement
COSTAR on exihibit at the National Air and Space Museum

The Corrective Optics Space Telescope Axial Replacement (COSTAR) is the instrument designed to correct Hubble Space Telescope's spherical aberration for light focused at the FOC, FOS and GHRS instruments.[1] Built by Ball Aerospace Corp., it replaced the High Speed Photometer (HSP) during the first Hubble Servicing Mission in 1993. Later instruments, installed after HST's initial deployment, were designed with their own corrective optics.

COSTAR was removed from HST in 2009 during the fifth servicing mission and replaced by the Cosmic Origins Spectrograph. It is now on exhibit in the Smithsonian's National Air and Space Museum.[2]

  • COSTAR being inserted into Hubble during First Servicing Mission.

  • Astronauts work on installing Hubble's corrective optics during Servicing Mission 1.

  • The dramatic improvement in Hubble's imaging capabilities after installation.

References

  1. ^ James H. Crocker (1993). "Engineering the COSTAR". Optics & Photonics News 4 (11). http://www.opticsinfobase.org/abstract.cfm?URI=opn-4-11-22. 
  2. ^ "Camera That Saved Hubble Now On Display". NPR. November 18, 2009. http://www.npr.org/templates/story/story.php?storyId=120539846. 

External links

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launch: STS-31 1990  · servicing: STS-61 1993  · STS-82 1997  · STS-103 1999  · STS-109 2002  · STS-125 2009
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