Assertion: planet | /r/CapableOf | reach apastron
Facets:
Source sentences:
text: As a planet approaches periastron, its speed increases as it trades gravitational potential energy for kinetic energy, just as a falling object on Earth accelerates as it falls; as the planet reaches apastron, its speed decreases, just as an object thrown upwards on Earth slows down as it reaches the apex of its trajectory.
text: Aphelion is the largest distance from the Sun a planet reaches in his orbit and is given by [latex]\text{r}_{\text{max}}=\frac{\text{p}}{1-\epsilon}[/latex]. Key Terms eccentricity : The coefficient of variation between [latex]\text{r}_{\text{min}}[/latex] and [latex]\text{r}_{\text{max}}[/latex]:
text: Perihelion is minimum distance from the Sun a planet achieves in its orbit and is given by [latex]\text{r}_{\text{min}}=\frac{\text{p}}{1+\epsilon}[/latex].