These signs have been taken from https://www.signbsl.com/
There are a number of signs for this word - we chose this because it graphically visualises the planets orbiting the Sun.
There are several signs for star. We chose this one because of it's similarity to the Sun (the Sun is an average sized star).
This sign suggests the light from the Sun radiating outwards. Speciafically, it seems to suggest the light travelling to the Earth.
We chose this sign because of its visual quality. It doesn't however, suggest the highly elliptical orbit.
It might be worth taking care with this sign - it represents the crescent Moon. However, in astronomy, there are many moons orbiting other planets. It is not obvious that this sign carries that meaning.
There are several signs for satellite. This one clearly models the act of one object orbiting another. Note its similarity with the sign for 'orbit'.