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6

I would recommend MPA Garching's Gadget code for cosmological simulations of structure formation. It's primarily gravitational, but I do believe you can include gas effects as well: GADGET computes gravitational forces with a hierarchical tree algorithm (optionally in combination with a particle-mesh scheme for long-range gravitational forces) and ...


3

I'm going to describe the steps that I followed to show 2004 BL86 in Stellarium in my notebook: Open the Configuration Window by pressing F2 Select the Plugins tab and from the left list select Solar System Editor Click in the configure button at the bottom Go to Solar System tab in the opened window Click the button Import orbital elements in MPC ...


2

Ok go on Stellarium then hover over the left side of the screen afterwards click on the location and select London, England (City Of London is the original walled city), then go and hover over the left side of the screen and select sky and viewing options and in the sky section and select the air pollution level from location database then it will ...


2

Aladin is a good way to do visualization from multiple catalogs. MAST also offers a cross-mission search.


2

Perhaps you are looking for the backup function File -> Backup... and to restore the settings File->Restore...


2

Horizons Ephemeris generator can give you a planet's position and velocity vectors at a specified time. This is one set of possible options: Clicking Generate Ephemeris on that page will give you position and velocity vectors: Above the position and velocity vectors are the Julian date as well as the more conventional date. Wikipedia can give the ...


1

What language are you writing this simulation in? Is it 2D or 3D? Do you only need positions and velocities for our solar system planets? I've done this exact thing (simulated the solar system in Fortran) and I didn't need exact initial positions, all I needed were initial radii (in AU from the Sun/centre of mass) and initial velocities. Use a random number ...



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