Galaxies Orbit facts

While investigating facts about Galaxies Orbit, I found out little known, but curios details like:

There's a probe orbiting Venus with a secondary mission: to find life on Earth. From Venus’s point of view, Earth is practically a pixel, which is exactly what exoplanets across the galaxy look like from Earth.

It takes the Earth (and the Sun) 226 million years to orbit around the Milky Way Galaxy. Which means Earth has made the orbit around our galaxy about 20 times since the planet is 4.5 billion years old.

In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across. Here are 23 of the best facts about Galaxies Orbit I managed to collect.

1. The Milky Way has several "satellite galaxies", smaller galaxies that orbit our galaxy like moons to a planet.

2. About UY Scuti. It is the largest star we have ever discovered, and is thought to be the largest star in our galaxy. If it were to replace our Sun, its surface would reach the orbit of Saturn.

3. If the largest star in the Galaxy was placed at the center of our Solar System, its surface would extend beyond the orbit of Jupiter.

4. Our Sun orbits around the galaxy's center with a period of approx. 200 million years. We were last at our relative position in the galaxy around the time of the dinosaurs. In the entirety of modern man's existence, we have completed 0.1% of a circuit.

5. The Milky way has a number of small "Satellite Galaxies" that orbit us.

6. Its unusual pinwheel pattern has most likely been created by energetic winds of dust and gas that are expelled and intertwine as two large stars orbit each other.

7. The solar system orbits the centre of our galaxy, the Milky Way, at 670 times the speed of sound (828,000 km/hr) and takes 230 million years to make one orbit.

8. There are about 15 galaxies that orbit the Milky Way galaxy.

9. The Milky Way has Satellite galaxies some of which orbit around our galaxy - like a moon for a planet.

10. In 2013 astronomers reported, based on Kepler space mission data, that there could be as many as 40 billion Earth-sized planets orbiting in the habitable zones of stars in just our Milky Way galaxy alone.

What is true about galaxies orbit?

You can easily fact check it by examining the linked well-known sources.

About satellite galaxies, which are smaller (dwarf) galaxies that orbit much larger galaxies. The Milky Way Galaxy has several, but the Large and Small Magellanic Clouds are the only ones visible to the naked eye given the right conditions.

A galaxy has been orbiting and crashing into the Milky Way for a billion years - the Sagittarius Dwarf Spheroidal Galaxy (Sgr dSph) - source

There are more rogue planets in our galaxy than stars with estimates of up to 100,000:1. These planets travel through the darkness of space alone without orbiting anything. - source

There are several smaller galaxies that orbit around the Milky way. Their distances range from about 95,000 light-years to 1.2 million light-years from Earth.

There are two irregular galaxies caked the Magellanic Clouds that are orbiting the Milky Way like moons. One of them leaving behind a snail trail of star dust as it makes its 1,500M year orbit - source

The Milky Way has about 30 satellite galaxies some in orbit around it others appear to be going to fast to be in orbit but are still gravitationally bound to it.

Our sun rotates the Milky Way Galaxy at a speed of 828,000 km/second, but even at that speed it take the solar system approximately 230 million years to make one orbit around the galaxy.

Voyager 1 and 2 will to still be orbiting the galaxy in 5 billion years--outlasting the Earth itself

During a Leap Second the time is written as 23:59:60 (in UTC) and the Sun orbits the core of our galaxy at 1/1300 of the speed of light.