the Sun
E1012599
G-type main-sequence star
astronomical object
celestial body
luminous sphere of plasma
star
yellow dwarf
The Sun is the massive, luminous star at the center of our solar system that provides the light and heat necessary for life on Earth.
Observed surface forms (1)
| Surface form | Occurrences |
|---|---|
| Sun | 0 |
Statements (74)
| Predicate | Object |
|---|---|
| instanceOf |
G-type main-sequence star
ⓘ
astronomical object ⓘ celestial body ⓘ luminous sphere of plasma ⓘ star ⓘ yellow dwarf ⓘ |
| absoluteMagnitude | +4.83 ⓘ |
| age | approximately 4.6 billion years ⓘ |
| apparentMagnitude | −26.74 ⓘ |
| atmosphericLayer |
chromosphere
ⓘ
corona ⓘ |
| averageDistanceToEarth | approximately 149.6 million kilometers ⓘ |
| composition |
about 2 percent heavier elements by mass
ⓘ
about 25 percent helium by mass ⓘ about 73 percent hydrogen by mass ⓘ |
| coreTemperature | approximately 15 million kelvin ⓘ |
| diameter | approximately 1.39268 million kilometers ⓘ |
| distanceToEarth | about 1 astronomical unit ⓘ |
| effectiveTemperature | approximately 5778 kelvin ⓘ |
| emits |
X-rays
ⓘ
infrared radiation ⓘ solar wind ⓘ ultraviolet radiation ⓘ visible light ⓘ |
| enables | life on Earth ⓘ |
| energySource | nuclear fusion ⓘ |
| equatorialCircumference | approximately 4.37 million kilometers ⓘ |
| escapeVelocity | about 617.5 kilometers per second ⓘ |
| fusionProcess | proton–proton chain ⓘ |
| futureEvolution |
will become a red giant
ⓘ
will end as a white dwarf ⓘ |
| galacticLocation | Milky Way NERFINISHED ⓘ |
| givesNameTo |
Sunday
ⓘ
solar year ⓘ |
| gravitationallyBinds | planets of the Solar System ⓘ |
| hasMeanDensity | about 1.41 grams per cubic centimeter ⓘ |
| heliosphereExtent | extends beyond Pluto ⓘ |
| hostObjectOf |
Earth
NERFINISHED
ⓘ
asteroids of the Solar System ⓘ comets of the Solar System ⓘ dwarf planets of the Solar System ⓘ planets of the Solar System ⓘ |
| knownSince | prehistoric times ⓘ |
| locatedIn |
Local Bubble
NERFINISHED
ⓘ
Local Interstellar Cloud NERFINISHED ⓘ Orion Arm NERFINISHED ⓘ |
| luminosity | approximately 3.828e26 watts ⓘ |
| magneticActivityCycle | approximately 11 years ⓘ |
| mass | approximately 1.989e30 kilograms ⓘ |
| massRelativeToEarth | approximately 333000 times Earth ⓘ |
| metallicity | about Z=0.013–0.02 ⓘ |
| movesThroughGalaxyAt | about 220 kilometers per second ⓘ |
| nearestStarToEarth | true ⓘ |
| orbitalPeriodAroundMilkyWay | about 225–250 million years ⓘ |
| partOf | Solar System NERFINISHED ⓘ |
| photosphereTemperature | approximately 5500 degrees Celsius ⓘ |
| positionInSystem | center of the Solar System ⓘ |
| primaryFusionProduct | helium GENERATED ⓘ |
| produces |
coronal mass ejections
ⓘ
solar flares ⓘ sunspots ⓘ |
| provides |
heat for Earth
ⓘ
light for Earth ⓘ |
| radius | approximately 696340 kilometers ⓘ |
| rotationPeriodAtEquator | about 25 days ⓘ |
| rotationPeriodAtPoles | about 35 days ⓘ |
| rotationType | differential rotation ⓘ |
| spectralType | G2V ⓘ |
| standardOf | solar time ⓘ |
| surfaceArea | approximately 6.09e12 square kilometers ⓘ |
| surfaceGravity | about 274 meters per second squared ⓘ |
| surfaceLayer | photosphere ⓘ |
| volume | approximately 1.41e18 cubic kilometers ⓘ |
| worshippedAs | deity in many ancient cultures ⓘ |
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Evening Star