Orrery and Skybox - NASA/JPL - Helios One

This orrery (with optional skybox included) is a scientifically accurate representation of our solar system in real time: it pings the NASA/JPL Horizons system, which picks the best ephemeris for information on position, axial tilt, spin angle for every celestrial body on spawn, then hourly.

2 advantages: it gives an amount of information and a degree of precision that's otherwise practically impossible to replicate within Second Life, and it leaves most of the heavy calculations to the Horizons application, outside the grid.

You will be able to search for 1,180,796 asteroids, 3,789 comets, 211 planetary satellites (including satellites of Earth and the dwarf planet Pluto), 8 planets, the Sun, L1, L2, select spacecrafts, and system barycenters.

The average distance between the Sun and the Earth is set to 0.8 SL meters, which leave just enough room for Pluto to squeeze into the 64*64 sphere skybox.

Distances are proportional with each other (i.e. the distances are true to their real world counterpart, they are just scaled down evenly).

The few bodies that would be beyond this edge (e.g. the Voyager probes) are instead positioned at the edge, with "--distance capped--" at the bottom of the object title to indicate that it isn't a true representation of distance.

If you cannot allocate a full 64*64 region to the orrery, the system will adjust and place the outer bodies at the edge of a 10*10 (imaginary) sphere, with the same "--distance capped--" message.

The planets are proportional in size with each other (i.e. Jupiter is approx. 11.2 times larger than the Earth in real life, and on the orrery).
The only exception is the Sun, which is over 100 times larger than Earth in real life, which would be WAY too big for our scaled down distances.
Instead, a true-scale representation of the Sun is floating far above the solar system in the skybox (and set the mood, it looks pretty cool!)

The 8 solar system planets (and Pluto!) are textured and have every attribute modeled (e.g. The Earth is positioned, spun and tilted exactly as it is in real life).

The other million+ objects are glowing dots, with their exact real world position (without light travel time).