1. By Sim & Summer

2. =3200c =10000c =4900c =30000c or a bit more! =6000c

3.  Sirius B : 0.08 the size of the sun!  Alpha Centauri: 1.2 the size of the sun!  Vega: 2 the size of the sun!  Capella: 13 the size of the sun!  Aldebaran: 46 the size of the sun!  Betelgeuse:230 the size of the sun!

5.  When a massive star dies, it does so in a spectacular explosion known as a supernova  Supernovas are very rare.Of the roughly 200 stars in our galaxy, only one explodes per century on avarage!

6. AA high mass star is a star which is anything over 8 times the mass of the sun!

7.  There are giant stars in space that can be 100 times larger than the sun, there are dwarf stars that can be 100 times smaller than the sun!

8.  The smaller stars live longer, it lives for billions of years, big stars die out in a few million years !

9.  There are giant stars in space that can be 100 times larger than the sun, there are dwarf stars that can be 100 times smaller !

11.  Light travels at an amazing 300,000 kilometers per second !

12.  The biggest star known is the hypergiant Cygnus, witch is 810,000 times as bright as the sun !