PX282 - G1 - fundamental properties

image: NASA/SDO

• a mid-sized and middle-aged main sequence star
• type: $G2V$
• mass: $M_{\odot }=1.99\times {10}^{30}kg$, measured using the orbits of planets
• radius: $R_{\odot }=6.9\times {10}^{8}m=109R_{\oplus }$, measured from the angular size and the distance from the earth to the sun $(1au)$

image: nick84, wikimedia

• its spectrum is close to a blackbody, with an effective temperature of $5780K$

where, $\sigma$ is the stefan-boltzmann constant

image: chandra x-ray observatory

• from its position in the HR diagram, it is a typical main sequence star of type $G2V$