AstroZoomLevel

is an option of AstroGraphics and AstroStyling that specifies the level of resolution at which to render images.

Details

AstroZoomLevel provides a base-2 logarithmic specification of map scale. An increase by 1 in astro zoom level corresponds to an increase in angular resolution by a factor of 2. An AstroZoomLevel value of 1 corresponds to data for the whole sky.

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Show the area of the center of the galaxy with default zoom:

Decrease the zoom level to decrease the resolution of the background image:

Use different zoom levels for the same region of the sky, increasing resolution of the background image:

Increase zoom around M8, with automatic computation of ranges and preserving image resolution:

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