What is A G2II star?

A G2II star is a bright giant star that falls under the spectral classification G2, which means it has a surface temperature around 5,500 Kelvin and appears yellowish-white in color. The "II" in its classification indicates that it is in the luminosity class II category, which signifies that it is a bright giant star in an advanced evolutionary stage. These stars have exhausted their core hydrogen fuel and have expanded to become much larger and brighter than main sequence stars like our sun.