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Questions tagged [spherical-astronomy]

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Conversion of 1D plot in 3D plot gives different physics

I am to track the path of a particle due to Lorentz force of the planet magnetic field, assuming there is no gravitational force on it. The equation of motion due to Lorentz force in rotating ...
Lunthang Peter's user avatar
1 vote
1 answer
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Transformation matrices and their derivation (if possible) for ICRS frame for reference to other frames

I am finishing up my thesis write up and one of the chapters in my thesis is on astronomical coordinate systems since in my analysis of data I have converted the available astrometry from the ICRS ...
CTZenScientist's user avatar
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Correct longitude from longitude over 180°

Last week, one of my exercise tasks was about determining the an observer's position on Earth, when in their zenith is a certain star with known right ascension and declination. We were supposed to ...
LittleCactus's user avatar
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Demonstration- formula for angle between horizon and ecliptic

The most precise and quite intuitive formula I could find online is here: https://www.celestialprogramming.com/snippets/angleBetweenEclipticAndHorizon.html $$\cos I = \cos ϵ \sin ϕ − \sin ϵ \cos ϕ \...
astrid lovespie's user avatar