Archive for the 'Astrophotography'

Aperture

Aperture is the diameter of the main lens or...
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Azimuth

The angle measured from the south point of the...
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Bailey’s Beads

Brilliant points of light along the edge of the...
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Barlow Lens

Put a Barlow lens between the main mirror or lens...
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Blue Shift

If an astronomical body is moving towards the...
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