Questions tagged [astronomy]
Questions on the astronomical applications of Mathematica.
144
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Is there a way to get AbsoluteTime to correctly report absolute time differences?
AbsoluteTime supposedly reports the "total number of seconds" between two dates, but it does not. For example, because of the leap second applied at 2012-...
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8
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2
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Problems getting clean sunrise, sunset, civil, nautical and astronomical twilight data
If in a notebook you enter:
...
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What do AstronomicalData's "SetTime" and "RiseTime" values refer to?
What astronomical event do AstronomicalData's "NextRiseTime", "NextSetTime", ...
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10
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1
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How do I determine astronomical transit times?
Mathematica, through the "legacy" Scientific Astronomer package, used to have the ability to easily determine accurate transit times of astronomical objects simply, with ...
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53
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Mollweide maps in Mathematica
Update
The integration of Healpix into mathematica is now available.
Context
In my field of research, many people use the following package: healpix (for Hierarchical Equal Area isoLatitude ...
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8
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Why is AstronomicalData so slow?
I'm having trouble getting some pretty simple functions using AstronomicalData to perform at anywhere near the speed I need them to.
For example, I have many ...
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15
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3
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How do I compute sidereal time and JD?
There was once a package that provided a wide range of functions for computing astronomical information. This package now appears to be out of date; but as near as I can tell, many of the useful ...
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Why is Neptune missing from AstronomicalData?
An old notebook I've recently started working with has a strange error: Prior to version 8, a figure I generated using Drop[AstronomicalData["Planet"],-1] to ...
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