Template talk:Solar System Infobox/Sun
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| Observation data | |
|---|---|
| Mean distance from Earth | 149.6×106 km (92.95×106 mi) (8.31 minutes at the speed of light) |
| Visual brightness (V) | −26.8m |
| Absolute magnitude | 4.8m |
| Spectral classification | G2V |
| Orbital characteristics | |
| Mean distance from Milky Way core | ~2.5×1017 km (26,000-28,000 light-years) |
| Galactic period | 2.25-2.50×108 a |
| Velocity | 217 km/s orbit around the center of the Galaxy, 20 km/s relative to average velocity of other stars in stellar neighbourhood |
| Physical characteristics | |
| Mean diameter | 1.392×106 km (109 Earths) |
| Circumference | 4.373×106 km |
| Oblateness | 9×10−6 |
| Surface area | 6.09×1018 m² (11,900 Earths) |
| Volume | 1.41×1027 m³ (1,300,000 Earths) |
| Mass | 1.988 435×1030 kg (332,946 Earths) |
| Density | 1,408 kg/m³ |
| Surface gravity | 273.95 m s-2 (27.9 g) |
| Escape velocity from the surface |
617.54 km/s (55 Earths) |
| Surface temperature | 5785 K |
| Temperature of corona | 5 MK |
| Core temperature | ~13.6 MK |
| Luminosity (Lsol) | 3.827×1026 W ~3.75×1028 lm (~98 lm/W efficacy) |
| Mean Intensity (Isol) | 2.009×107 W m-2 sr-1 |
| Rotation characteristics | |
| Obliquity | 7.25° (to the ecliptic) 67.23° (to the galactic plane) |
| Right ascension of North pole[1] | 286.13° (19 h 4 min 30 s) |
| Declination of North pole | +63.87° (63°52' North) |
| Rotation period at equator | 25.38 days (25 d 9 h 7 min 13 s)[1] |
| Rotation velocity at equator | 7174 km/h |
| Photospheric composition (by mass) | |
| Hydrogen | 73.46 % |
| Helium | 24.85 % |
| Oxygen | 0.77 % |
| Carbon | 0.29 % |
| Iron | 0.16 % |
| Sulphur | 0.12 % |
| Neon | 0.12 % |
| Nitrogen | 0.09 % |
| Silicon | 0.07 % |
| Magnesium' | 0.05 % |
