Solar luminosity

Sun's luminosityluminosity of the Sunsolar luminositiesluminosityof the SunSunthat of the Sunthe Sunas the Sunluminosity as the Sun
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.wikipedia
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Luminosity

luminousbolometric luminosityluminosities
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.
In astronomy, values for luminosity are often given in the terms of the luminosity of the Sun, L ⊙.

Star

starsstellarmassive star
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Solar cycle

solar variationsolar activitysunspot cycle
The Sun is a weakly variable star, and its actual luminosity therefore fluctuates.
Satellite monitoring of solar luminosity revealed a direct relationship between the Schwabe cycle and luminosity with a peak-to-peak amplitude of about 0.1%.

Solar mass

mass of the SunSun's masssolar masses
Most of this energy eventually radiates away from the Sun.

Triple-alpha process

helium fusionhelium burningtriple alpha process
During the core flash, the star's energy production can reach approximately 10 11 solar luminosities which is comparable to the luminosity of a whole galaxy, although no effects will be immediately observed at the surface, as it is hidden by the star's overlying layers.

Solar radius

Sun's radiusradius of the Sunsolar radii

Radiant flux

sunlightstellar fluxradiant power
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Power (physics)

powermotive powerengine power
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Photon

photonslight quantaincident photon
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Astronomer

astronomersastrophysicistprofessional astronomers
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Galaxy

galaxiesgalacticgalactic nuclei
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

Sun

solarSolThe Sun
The solar luminosity, is a unit of radiant flux (power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun.

International Astronomical Union

IAUWorking Group for Planetary System NomenclatureInternational Astronomical Union (IAU)
One nominal solar luminosity is defined by the International Astronomical Union to be 3.828 W. This does not include the solar neutrino luminosity, which would add.

Solar neutrino

solar neutrinossolarneutrino emissions from the Sun
One nominal solar luminosity is defined by the International Astronomical Union to be 3.828 W. This does not include the solar neutrino luminosity, which would add.

Variable star

variablevariable starsvariability
The Sun is a weakly variable star, and its actual luminosity therefore fluctuates.

Irradiance

intensitylight intensityspectral irradiance
Solar luminosity is related to solar irradiance (the solar constant).

Solar constant

energy from the starheatintensity at Earth orbit
Solar luminosity is related to solar irradiance (the solar constant).

Orbital forcing

changes in earth's orbitdriven byMilankovitch Forcing
Solar irradiance is responsible for the orbital forcing that causes the Milankovitch cycles, which determine Earthly glacial cycles.

Milankovitch cycles

Milankovitch cycleMilankovitch theoryMilankovich cycle
Solar irradiance is responsible for the orbital forcing that causes the Milankovitch cycles, which determine Earthly glacial cycles.

Astronomical unit

AUastronomical unitsAUs
:where A is the unit distance (the value of the astronomical unit in metres) and k is a constant (whose value is very close to one) that reflects the fact that the mean distance from the Earth to the Sun is not exactly one astronomical unit.

Metre

metermmetres
:where A is the unit distance (the value of the astronomical unit in metres) and k is a constant (whose value is very close to one) that reflects the fact that the mean distance from the Earth to the Sun is not exactly one astronomical unit.

Future of Earth

Future of the Earthend of life on Earthred giant star
These include the chemistry at Earth's surface, the rate of cooling of the planet's interior, the gravitational interactions with other objects in the Solar System, and a steady increase in the Sun's luminosity.

Megamaser

megamaserskilomaser
Megamasers have typical luminosities of 10 3 solar luminosities, which is 100 million times brighter than masers in the Milky Way, hence the prefix mega.

Aldebaran

Alpha Tauribrightest starRohini
Aldebaran is a red giant, cooler than the sun with a surface temperature of 3,900 K, but its radius is about 44 times the sun's, so it is over 400 times as luminous.