What specific optical deficit caused the initial blurry images from Hubble?
Answer
spherical aberration
The problem that marred the initial images was precisely identified as spherical aberration, meaning light rays hitting the edge focused differently than those hitting the center of the primary mirror.
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Related Questions
When was the Hubble Space Telescope launched?What specific optical deficit caused the initial blurry images from Hubble?By approximately how much did the primary mirror's edge deviate from the perfect parabolic curve?What equipment used during manufacturing was assembled incorrectly, causing systematic measurement errors?Which critical component was either missing or installed in the wrong position within the faulty measurement instrument?What diagnostic technique did ground-based astronomers use to assess the light path quality upon receiving the first images?Approximately how long did the period between launch and the first repair mission last?What elegant and daring solution was implemented to address the flawed mirror in orbit?What was the primary role of the COSTAR instrument installed during the first Servicing Mission?How was the optical correction for spherical aberration incorporated into the WFPC2?