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- Mon Jan 12, 2009 8:35 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Unusual Light Pillars Over Latvia (2009 Jan 12)
- Replies: 176
- Views: 191346
Re: Unusual Light Pillars Over Latvia (2009 January 12)
Hello These "pillars" make me think of a gigantic "psf" aka a "point spread function, that is the image of a subresolution sphere made by a microscope. Typically the sphere will be deformed (elongated) along the axis of the microscope (the "Z" axis) so as to take t...