hi

how can i proof :( :

where

if the planet orbit on ellipse ???

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- May 23rd 2006, 01:43 AMsweetneed help!!
hi

how can i proof :( :

where

if the planet orbit on ellipse ??? - May 23rd 2006, 03:57 AMCaptainBlackQuote:

Originally Posted by**sweet**

we are guessing what you have been asked to prove, I assume it is:

but that leaves us guessing is supposed to be ?

Is the eccentricity? the semi-major axis?

Also what is ?

We can guess but it is just making it more work for the helpers here.

RonL - May 23rd 2006, 05:23 AMsweet
ok ;)

mu =

e= the eccentricity

a= the semi-major axis

E=the eccentric anomaly

we want to proof

if the planet orbit on ellipse ???

where

Thanks for helping me! - May 23rd 2006, 07:21 AMCaptainBlackQuote:

Originally Posted by**sweet**

planet in its orbit and v as defined here is a constant, as are e mu and a

this cannot be true for almost all values of eccentricity.

Or have I misunderstood something?

RonL - May 23rd 2006, 08:53 AMsweet
E divined like in the graph

and v isn't constant it's a Velocity - May 23rd 2006, 09:41 AMCaptainBlackQuote:

Originally Posted by**sweet**

- May 23rd 2006, 10:08 AMsweet
is Aphelion Velocity

is pericentre Velocity

and v is aggregate of

so

- May 23rd 2006, 10:11 AMCaptainBlackQuote:

Originally Posted by**sweet**

RonL - May 23rd 2006, 10:15 AMsweetQuote:

Originally Posted by**CaptainBlack**

why u say it's constant

:confused: :confused: - May 23rd 2006, 01:44 PMtopsquarkQuote:

Originally Posted by**sweet**

-Dan - May 23rd 2006, 01:52 PMsweetQuote:

Originally Posted by**topsquark**

i'm sorry it's Perihelion velocity not pericenter velocity :rolleyes: - May 24th 2006, 01:45 PMtopsquarkQuote:

Originally Posted by**sweet**

-Dan - May 24th 2006, 04:21 PMsweetQuote:

Originally Posted by**topsquark**

it,s verey hard .... - May 25th 2006, 04:37 AMtopsquarkQuote:

Originally Posted by**sweet**

-Dan - May 25th 2006, 10:29 AMCaptainBlackQuote:

Originally Posted by**topsquark**

RonL