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Home Q & A Board Biology-Related Homework Help General Biology
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Jayy09 Jayy09
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12 years ago
How long (in months) will a trip to the asteroid belt take if it has a semi-major axis of 2.5
AUs (using a Hohmann Transfer orbit)?
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#1
Valued Member
12 years ago
A Hohmann orbit would have a perihelion of 1 AU and an aphelion of 4 AU. Thus the semimajor axis is 2.5 AU [ (1+4)/2 ]. From there use Kepler's third law: a^3 = p^2 where a is the semimajor axis and p is the period.
Sunshine ☀ ☼
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#2
Staff Member
12 years ago
Quote from: colleen (12 years ago)
A Hohmann orbit would have a perihelion of 1 AU and an aphelion of 4 AU. Thus the semimajor axis is 2.5 AU [ (1+4)/2 ]. From there use Kepler's third law: a^3 = p^2 where a is the semimajor axis and p is the period.

So like this?

(p)^2 = a^3
period = (2.5)^(3/2). ??

Isn't that kepler's 2nd law?
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