The Solar System Flashcards
1
Q
What is the Prot Pday equation?
A
1/Prot = 1/Pday + 1/Porb
Prot= sidereal
Pday and Porb = synodic
2
Q
What is the outer inner planet equation?
A
1/Psyn = 1/Pi - 1/Po
Psyn = synodic (solar)
Pi and Po = sidereal
3
Q
What is the equation for eccentricity?
A
e = f/a
4
Q
What is the equation for the semi minor axis?
A
b = a root 1 - e^2
5
Q
What are the equations for perihelion and aphelion distances?
A
Perihelion d = a(1-e) = closest d
Aphelion d = a(1+e) = furthest d
6
Q
Keplers third law?
A
P^2 = k a^3
Where k= 4 pi^2 / G Solar Mass
7
Q
What is vrms?
A
Vrms = root 3kT/m
Where m is particle mass
8
Q
What is the escape velocity limit?
A
Root 2GM/R > 6 root 3kT/m
9
Q
What is the equation for tidal force?
A
Tidal force = 2GMmx/ d^3
10
Q
What is the Roche limit?
A
d = (2M/m) ^1/3
