Universe Sandbox

Universe Sandbox Legacy => Universe Sandbox 2008 | Discussion => Topic started by: Dody on July 11, 2008, 07:03:25 AM

Title: How to insert a New Planet in Simulations ?
Post by: Dody on July 11, 2008, 07:03:25 AM

   
In 1988 Robert Harrington has developed a hypothesis that anomalies in the orbits of Uranus and Neptune were due to the presence of a planet X beyond the orbit of Pluto:

http://articles.adsabs.harvard.edu//full/1988AJ.....96.1476H/0001478.000.html

http://www.astro.rug.nl/~onderwys/ACTUEELONDERZOEK/JAAR2000/plx/fulltext2.html

Despite these anomalies were later corrected without the need of an Planet X,  I have tried to recreate the orbit of the planet proposed by Harrington with the Universe Sandbox using the file "Our Solar System."

But I have not had success since the planet never appears in the simulations ( I paste the file in a folder above the system files ).

Maybe I have committed some mistake in the conversion of data from orbital elements in vectors of position and velocity.

Does anyone know tell me how to perform this conversion? Is there a tool for this?

Title: Re: How to insert a New Planet in Simulations ?
Post by: Dan Dixon on July 12, 2008, 09:30:52 PM

Can you share the code so I can see what the problem might be?

And remember you need to put your System files in:
My Documents\Universe Sandbox\Systems

If you put your custom XML files in the System folder where the application is installed it may be deleted when you update.

Title: Re: How to insert a New Planet in Simulations ?
Post by: OmegaRed on July 14, 2008, 01:38:04 PM

I have had problems with planets not showing up due to bad input in the .xml.  Whether it be a tag out of order, or an incorrect value.

If you post your xml i am sure someone can help.

Title: Re: How to insert a New Planet in Simulations ?
Post by: Dan Dixon on July 19, 2008, 11:41:24 AM

Alnitak created a system with Nibiru / Planet X in this thread:
http://universesandbox.com/forum/index.php/topic,32.0.html