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Questions tagged [astronomy]

Questions on the astronomical applications of Mathematica.

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142 questions
14
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Geocentric, Earth-fixed, coordinates of Sun, Moon (and others objects eventually)

I know I can get "HelioCoordinates" of the Earth and the Moon with PlanetData["Earth", "HelioCoordinates"] PlanetaryMoonData["Moon", "HelioCoordinates"] {Quantity[-0.897541, "AstronomicalUnit"], Quantity[-0.449087, "AstronomicalUnit"], …
unlikely
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5
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1 answer

Plotting the Equation of Time: SiderealTime and SunPosition

The equation of time describes the discrepancy between two kinds of solar time. The word equation is used in the medieval sense of reconcile a difference. The two times that differ are the apparent solar time, which directly tracks the motion of…
unlikely
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4
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Entering Right Ascension in AstroPosition

In the new Mathematica 13.2 the AstroGraphics let you plot the sky, e.g. centered at a specific coordinate. However, I cannot figure out how to enter efficiently the value for {right ascension, declination}. Below is my best outcome so far for an…
HJensen
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4
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Is MoonPosition working as expected?

I have noticed some surprising behavior when executing the MoonPosition function. When I provide a range of dates, I get a TemporalData answer: do1 = DateObject[{2016, 1, 1}]; do2 = DateObject[{2016, 1, 5}]; dr1 = DateRange[do1, do2]; mp1 =…
Spencer Rugaber
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2
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AstroPosition[] years of validity

I'm using online version 13.3(?) attempting to compute the position of Jupiter. It looks like "AstroPosition[]" only returns values for years between 1900 and 2050. Outside of these dates, it returns the input. Wolfram|Alpha however, returns a…
W. Cottee
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2
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1 answer

Charting sun location throughout the year from a specified geographic location

I'd like to chart the location of the sun (azimuth and elevation) from a given location (e.g., Chicago) throughout the year for a stated year (e.g., 2010). Here is the basic extraction of the current location of the sun, but it doesn't include a…
David G. Stork
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0
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Astroposition function in wolfra cloud

I am trying to copy paste and compute the input given in this link for the movement of mars. But wolfram cloud gives error. https://reference.wolfram.com/language/ref/AstroGraphics.html When compute below instruction mars =…
shanrrg
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