How many stars are there in the satellite galaxies of Milky way?

It's very rare but a star can be created outside a galaxy. I don't have any examples but they exist and it's rare.

I assume that your 1010 means $10^10$. Then the number of stars is simply $10^10*10^10=10^20$.

It is speculated, however, that the spiral type of galaxy is the most prevalent.

There are a ton of extremely powerful telescopes both here on Earth and in space that is capable of looking billions of light years far. And we can see a...

Many galaxies are members of groups or clusters. Since groups and clusters contain so many galaxies relatively close together, it should not be surprising that galaxies sometimes collide with each...

Stars tend to exist in a binary setup. That is, two stars orbiting about each other. Our star, , is an exception although there is discussion that maybe a long...

The absolute brightness (i.e. number of photons per unit time for a fixed size detector) decreases as the square of the distance. To prove this for yourself, think of the...

If there was an accretion disc around the Milky Way's central supermassive black hole it would emit massive amounts of radiation. The supermassive black hole has consumed most of the...

From recent discoveries of astronomers, they have found out that dark matter is responsible for , and dark energy fuels the dark matter. But dark matter and dark energy are...

To do this problem, you need the $R = 6371 km$ For the satellite to be in a stable orbit at a height, h, its centripetal acceleration $V^2/(R + h)$...