- #1
Dustinsfl
- 2,281
- 5
Earth to Venus Hohmann transfer alignment time.
Earth is at periapsis and Venus is at 190 degrees at ##t = 0##.
For a Hohmann transfer, Venus must be lagging Earth by ##36.0298## degrees.
I am trying to find the time it takes for the planets to align from their current positions.
Is this correct: initial angular difference (190) = desired angular difference (-36.0298) + (nv - ne)t where nv and ne are the mean motion of Venus and Earth, respectively.
##nv = 0.0279658## rad/day and ##ne = 0.0172024## rad/day
$$
3.31613 = -0.628838 + (0.0279568 - 0.0172024)t\Rightarrow t = 366.516\text{ days}
$$
So from their initial configuration, it would take 366.516 days for Venus to lag Earth by 36.0298 degrees.
Earth is at periapsis and Venus is at 190 degrees at ##t = 0##.
For a Hohmann transfer, Venus must be lagging Earth by ##36.0298## degrees.
I am trying to find the time it takes for the planets to align from their current positions.
Is this correct: initial angular difference (190) = desired angular difference (-36.0298) + (nv - ne)t where nv and ne are the mean motion of Venus and Earth, respectively.
##nv = 0.0279658## rad/day and ##ne = 0.0172024## rad/day
$$
3.31613 = -0.628838 + (0.0279568 - 0.0172024)t\Rightarrow t = 366.516\text{ days}
$$
So from their initial configuration, it would take 366.516 days for Venus to lag Earth by 36.0298 degrees.