What type of star is Antares? __ How does it size compare to our Sun? __ (All stars eventually go through this stage.) What type of star is S Doradus? __ (these are the biggest stable stars, most big stars are small stars that have expanded at end of life) VY Canis Majoris -what is special about this star? __ If this were our Sun, which planets would still exist? __

## Step 1<br />Antares is a type of star known as a red supergiant. This is determined by its spectral class, which is M2. <br /><br />## Step 2<br />The size of Antares compared to our Sun is determined by its radius. The radius of Antares is approximately 1,000 times that of our Sun. <br /><br />## Step 3<br />S Doradus is also a type of star known as a red supergiant. This is determined by its spectral class, which is M2. <br /><br />## Step 4<br />VY Canis Majoris is a unique star because it is the largest known star in the Milky Way galaxy. It is a red hypergiant, which is a type of star that is larger and more luminous than a red supergiant. <br /><br />## Step 5<br />If Antares were our Sun, it would still be in the main sequence phase of its life. This is because the main sequence phase is the longest phase of a star's life, and Antares is still in this phase. <br /><br />## Step 6<br />If S Doradus were our Sun, it would have already passed the main sequence phase and would be in the red giant phase. This is because the red giant phase is the next phase after the main sequence phase, and S Doradus is in this phase. <br /><br />## Step 7<br />If VY Canis Majoris were our Sun, it would have already passed the main sequence phase and would be in the red giant phase. This is because the red giant phase is the next phase after the main sequence phase, and VY Canis Majoris is in this phase. <br /><br />## Step 8<br />If Antares were our Sun, the planets in our solar system would still exist. This is because the main sequence phase is the longest phase of a star's life, and Antares is still in this phase. <br /><br />## Step 9<br />If S Doradus were our Sun, the planets in our solar system would not exist. This is because the red giant phase is the next phase after the main sequence phase, and S Doradus is in this phase. <br /><br />## Step 10<br />If VY Canis Majoris were our Sun, the planets in our solar system would not exist. This is because the red giant phase is the next phase after the main sequence phase, and VY Canis Majoris is in this phase.