Our Sun
* Spectral type: G2V
* Mass: 1 solar mass
* Luminosity: 1 solar luminosity
* Temperature: 5,778 K
* Age: 4.6 billion years
Other well-known main sequence stars:
* Sirius (Alpha Canis Majoris): A1V, 2.02 solar masses, 25.4 solar luminosities, 9,940 K. The brightest star in the night sky, it's a binary system with a white dwarf companion.
* Proxima Centauri: M6Ve, 0.12 solar masses, 0.0017 solar luminosities, 3,042 K. The closest star to our Sun, it's a red dwarf.
* Alpha Centauri A: G2V, 1.1 solar masses, 1.52 solar luminosities, 5,790 K. Part of a triple star system with Alpha Centauri B and Proxima Centauri.
* Vega (Alpha Lyrae): A0V, 2.1 solar masses, 57 solar luminosities, 9,600 K. One of the brightest stars in the night sky, it's a young star.
* Arcturus (Alpha Boötis): K1.5III, 1.08 solar masses, 170 solar luminosities, 4,290 K. While it's a giant star, it was likely once a main sequence star.
Other interesting main sequence stars:
* Barnard's Star: M4.0V, 0.14 solar masses, 0.0035 solar luminosities, 3,130 K. A red dwarf and the closest single star to our Sun.
* 61 Cygni A: K5V, 0.73 solar masses, 0.18 solar luminosities, 4,700 K. Part of a binary system with a companion star, 61 Cygni B.
* Tau Ceti: G8V, 0.78 solar masses, 0.53 solar luminosities, 5,340 K. A solar-type star with a planetary system.
* Kepler-186f: M2.5V, 0.47 solar masses, 0.12 solar luminosities, 3,600 K. A red dwarf with a confirmed exoplanet in its habitable zone.
Note: This is just a small sample of the countless main sequence stars in the universe. They are classified by spectral type and luminosity, and their properties vary depending on their mass.
