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With what 'height' of atmospehere should you work if you like to calculate on orbits around Mars? I can't find the numbers. In a book I read 50 km, somewhere on the internet 120 km, and by making a guess by the gas-law about 210 km.
Apollo went round some orbits at a height of 185 km, so the pressure of 10e-5 Pa is appearantly a number to begin with.
In that case Venus' atmosperic height would be about 270 km.
Does anybody know the numbers? Can't find it on the web.
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With what 'height' of atmospehere should you work if you like to calculate on orbits around Mars? I can't find the numbers. In a book I read 50 km, somewhere on the internet 120 km, and by making a guess by the gas-law about 210 km.
Apollo went round some orbits at a height of 185 km, so the pressure of 10e-5 Pa is appearantly a number to begin with.
In that case Venus' atmosperic height would be about 270 km.
Does anybody know the numbers? Can't find it on the web.
I don't know if this will be a help to you or not, but here's a cool link to play with air pressure and gravity..just punch in the appropiate variables and see what you come up with...
http://www.personal.usyd.edu.au/~gerhar … e.html]Air Pressure calculator
B
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I once saw the altitudes used to aerobrake orbiting vehicles that lacked heat shields (they used the solar panels) and I was surprised it was so low; maybe 60 or 80 kilometers, I think. But a permanent, stable orbit around Mars would be higher. Probably 200 km is a good guess.
-- RobS
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