Our Sun is a regular main-sequence class G2 star.
It is the largest object in our solar system and contains more than 99.8% of all mass present in our solar system.
At present our Sun’s mass consists of about 70% hydrogen, 28% helium and some other elements.
This amount slowly changes over time as hydrogen is converted to helium in the core of our Sun.
The average remaining life-span of our Sun is estimated to be about 4.5 billion years after which it will slowly expand into a red giant star which will eventually collapse and explode. This will probably create a nice planetary nebula, but unfortunately we won’t be around anymore to take a picture of it !
|Type||G-type main-sequence star|
|Age||~ 4.6 billion years|
|Distance||1 AU – 8m 19s at light speed|
|from Milky Way core||27.200 ly|
|Equatorial radius||695.700 km – 109 Earths|
|Eq. Surface gravity||27,94 G|
|Sidereal rot. period||25,05 days|