So while we are advised by doctors to reduce our intake of sodium through diet, it is important to increase the intake of potassium to reach a balance between the two essential metals inside our bodies. In brief: Potassium vs Sodium. â¢ Sodium has an atomic number of 11 while potassium has an atomic number of 19.
Most common type, most of these are dwarf galaxies (too small and too dim to be easily seen). Shaped like large, 3-dimensional ellipses (football shaped). Giant elliptical galaxies can be over 9 million light-years across and contain trillions of stars.. Dwarf elliptical galaxies- only about 3,000 light-years across and contain fewer than a million stars. Most contain little gas and dust and cannot make new stars. Irregular galaxies can take many different shapes and contain 100 million to 10 billion stars, Less common than elliptical or spiral. a. Larger than Dwarf ellipticals but smaller than spiral galaxies. a galaxy that does not have a regular shape, typically smaller than other types or galaxies, generally have bright, young stars and lots of gas and dust to form new stars.
Averaging out the types of stars within our galaxy, this would produce an answer of about 100 billion stars in the galaxy. This is subject to change, however, depending on how many stars are bigger and smaller than our own sun.Also, other estimates say the Milky Way could have 200 billion stars or more.The number of galaxies is an astonishing number, however, as shown by some imaging experiments performed by the Hubble Space Telescope.bservable universe. Even if we narrow down the definition to the observable universe â what we can see â estimating the number of stars within it requires knowing just how big the universe is. The first complication is that the universe itself is expanding, and the second complication is that space-time is curved.