Creative Commons Attribution-Share Alike 4.0 truetrue English Mirrors of Keck Observatory Wikimedia username: Phoenix7777 URL: https://commons.wikimedia...
I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative Commons Attribution-Share...
I, the copyright holder of this work, hereby publish it under the following licenses: This file is licensed under the Creative Commons Attribution-Share...
show diagrams of aperture masks which were placed in front of the secondary mirror of the Keck telescope by Peter Tuthill and collaborators. Date 25 August...
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