4.6 billion years ago or 5 billion years if you round up. :)
5 billion years ago
approx. 5 billion years
correct answer 26,000 A+
But ... there are many bodies in our Solar system that have no atmosphere.
The Andromeda Galaxy is a separate galaxy, about 120,000 light years across, containing trillions of stars - possibly many with planets. Our Solar System is a single star with 8 planets and at best measures 2 light years.
The best guess is that our solar system is about 8 billion years old.
Our solar system is thought by astronomers to be about four and a half billion years old.
It takes a quarter of a billion years for the solar system to circle the milky way
5 billion years ago
About 1,000,000,000,000,000,000,000,000,000,000,00 years ago.
Since the Solar System is thought to be about four and a half billion years old, and the galactic year calculated to be around 250 million years, the Solar System's age in terms of galactic or cosmic years would be roughly eighteen.
25,000
The solar system takes approximately 230 million years to orbit the center of the Milky Way.
Depending entirely on the boundaries of the Solar System, it has been estimated to be a bout 2 light years.
This is estimated at about 200 million years.
It takes about 225 million years for the solar system to travel once around the Galaxy. Th solar system is about 4.6 thousand million years old. So a rough estimate would be 20 times.
About 26,000 years