- #1
ryanie
- 9
- 0
Hi
Im trying to calculate the speed of the moon at perigee but i don't know where I am going wrong.
As i know the formula is v = sqrt[ GM( (2/p) - (1/a) ) ]
where
g = gravitation constant
m = mass of the earth
p = distance perigee from the earth
a = semi major axis
The values I am using are
g= 6.67384e-11
m = 5.97219e+24kg
p = 363295km
a = 384399km
the result I am getting is 75.5524m/s
Im not even sure if this is correct, could someone advice me in the correct method
*EDIT, showed the unit I am working in. Also as a side note i pulled the data of wikipedia*
Im trying to calculate the speed of the moon at perigee but i don't know where I am going wrong.
As i know the formula is v = sqrt[ GM( (2/p) - (1/a) ) ]
where
g = gravitation constant
m = mass of the earth
p = distance perigee from the earth
a = semi major axis
The values I am using are
g= 6.67384e-11
m = 5.97219e+24kg
p = 363295km
a = 384399km
the result I am getting is 75.5524m/s
Im not even sure if this is correct, could someone advice me in the correct method
*EDIT, showed the unit I am working in. Also as a side note i pulled the data of wikipedia*
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