seriously disabled

http://en.wikipedia.org/wiki/Dwarf_galaxy

 

I don't want to suggest that the Wikpee is an authority, but this does roughly correspond to what you might learn in a general astro course. We were told that Milky has about 400 billion. That was some time back. I don't know what the best estimate is now.

 

A dwarf has just a few billion, like under 10 billion. Apparently the classification is fuzzy.

Hi Martin. Thanks for the reply.

The problem is that wikipedia later says in a different article that "typical galaxies range from dwarfs with as few as ten million (10^7) stars up to giants with one trillion (10^12) stars, all orbiting a common center of mass".

http://en.wikipedia.org/wiki/Galaxy

So can a dwarf galaxy contain only 10 million stars or is this number too small?

How many stars do dwarf galaxies have? Also how many stars does an average or regular galaxy have?

If air flows away only in the upper troposphere, why does it leave less mass on the surface?

http://www.weatherquestions.com/What_causes_low_pressure.htm

Do you know some books who teach you how to write interpreters?