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 !
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Object info
| Name | Sun |
| Type | G-type main-sequence star |
| Age | ~ 4.6 billion years |
| Absolute magnitude | 4.83 |
| Spectral classification | G2V |
| Distance | 1 AU – 8m 19s at light speed |
| from Milky Way core | 27.200 ly |
| Equatorial radius | 695.700 km – 109 Earths |
| Mass | 333.000 Earths |
| Eq. Surface gravity | 27,94 G |
| Sidereal rot. period | 25,05 days |
| Apparant magnitude | -26,74 |
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