Questions regarding the amount of space between two objects, the units, or measurement thereof.

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Triangular Asterism Trigonometry

Using the SIMBAD database for Alnitak, Saiph, and Sirius -- i.e.: Alnitak: FK5 coord. (J2000): RA = 05 40 45.527 DEC = -01 56 33.26; Saiph; FK5 coord. (J2000): RA = 05 47 45.389 DEC = -09 40 10.58; ...
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Ice giants and Gas Giants

I had this speculation: I know that temperature and therefore internal pressure of a planet drops with its distance from the star, which explains why Uranus and Neptune are colder and smaller than ...