21 First Magnitude Stars
Star Magnitudes (or visibility) lessens as the number increases. For example, a first magnitude star is one hundred times brighter than a sixth magnitude star and a sixth magnitude star is barely visible to the naked eye. Venus can reach as high as -4.6 magnitude the very brightest planet or star in our night sky. The Full Moon is -12 magnitude and the Sun is a -27 magnitude. Sirius is the brightest fixed star in our sky and is visually rated as a -1.42 magnitude. Here are the brightest magnitude stars we can listed in brightness order starting with the brightest.
| Star Name | Constellation | Magnitude |
| Sirius | Canis Major | -1.42 |
| Canopus | Carina | -0.72 |
| Alpha Centauri | Centaurus | 0.27 |
| Arcturus | Boötes | -0.06 |
| Vega | Lyra | 0.04 |
| Capella | Auriga | 0.06 |
| Rigel | Orion | 0.14 |
| Procyon | Canis Minor | 0.35 |
| Achernar | Eridanus | 0.53 |
| Hadar | Centaurus | 0.66 |
| Betelgeuse | Orion | 0.70 |
| Altair | Aquila | 0.77 |
| Aldebaran | The Bull | 0.86 |
| Acrux | Crux | 0.87 |
| Antares | The Scorpion | 0.92 |
| Spica | The Priestess | 1.00 |
| Pollux | The Twins | 1.16 |
| Fomalhaut | Piscis Austrinus | 1.17 |
| Deneb | Cygnus | 1.26 |
| Beta Crucis | Crux | 1.28 |
| Regulus | The Lion | 1.36 |