Astrophysics (index)about

Sun

(star at center of solar system)

The Sun is the star around which the Solar System revolves.

Compared to other stars:

The study of stars reveals information about the sun's past and future, and the study of the sun reveals characteristics that other stars are presumed to have. Aside from evidence for basic Stellar Structure the sun shows Granulation, constantly changing light and dark spots on the order of 500km in diameter.

Early Sun:

  • 75% of the Luminosity of today's Sun
  • 3-day rotation period
  • larger radius
  • hotter
  • flares 100 times more energetic

Future Sun:

Common terms:

  • R, RSun, or Rsun - radius of the Sun
  • M, MSun, or Msun - mass of the Sun
  • L, LSun, or Lsun - luminosity of the Sun

(star,solar system)
http://en.wikipedia.org/wiki/Sun
RedshiftParsecs
/Distance
Lightyears
/Lookback Years
  
~01AU~0lySun

Referenced by:
Absolute Magnitude (M)
Abundances
Advanced Composition Explorer (ACE)
Asymptotic Giant Branch (AGB)
Alpha Centauri
Antenna Temperature
Apparent Magnitude (m)
Apsis
ARIEL
Asteroid
Asteroid Belt
Asteroseismology
Astronomical Quantities
Atmospheric Tide
Astronomical Unit (AU)
Bcool
Beta (β)
Binding Energy
Black Body (BB)
Calcium (Ca)
Carbon Star
Cassini
Celestial Equator
Chondrite
Chromosphere
Circumstellar Disk
Coronal Mass Ejection (CME)
Comet
Compact Object
Corona
Coronagraph
Corotation Resonance (CR)
Current Sheet
Continuous Viewing Zone (CVZ)
Dynamo
Earthshine
Ecliptic
Ecliptic Coordinate System
Epicycle
Epoch
Equinox
Euclid
Extreme Ultraviolet (EUV)
F-Type Star (F)
FGK Star
FINESSE
Gaia
Galactic Coordinate System
Gauss (G)
G Band
G-Type Star (G)
Geomagnetic Storm
Giant Planet
Globular Cluster (GC)
Gravitational Collapse
Gravity
Gravity Wave
Greenhouse Effect
Gyrochronology
Habitability
Heliocentric System
Heliosphere
Hill Radius
H-R Diagram (HRD)
Hypervelocity Star (HVS)
International Astronomical Union (IAU)
Interferometer
Iron (Fe)
Interstellar Magnetic Field (ISMF)
J1407
J2
Julian Date (JD)
J Designator
Jansky (Jy)
Kepler Telescope
Kepler's Laws
Kelvin-Helmholtz Mechanism
Lagrangian Point
Lalande 21185
Light Cone
Limb Darkening
Lithium (Li)
Low Mass Star
Local Standard of Rest (LSR)
Luminosity Function (LF)
Magnetic Arcade
Magnetic Field
Magnetosphere
Magnitude
Main Sequence Star
Mars
Mass Loss
Mass-Luminosity Relation
Mass-To-Light Ratio (M/L)
Mercury
Metallicity (Z)
Milky Way
MMRTG
Moon
Mikheyev-Smirnov-Wolfenstein Effect (MSW Effect)
Nebular Hypothesis
Obliquity
Occulting Bar
Oort Cloud
Oort Constants
Opposition
Orbital Inclination
Orbital Speed
Parallax
Parsec (pc)
Planck
Planet Type
Plasma
PLATO
Potential Energy (PE)
Poynting-Robertson Effect
Precession
Proper Motion
Quantum Tunneling
Quasar (QSO)
Radio Star
Random Walk
Rayleigh Scattering
Magnetic Reconnection
Red Giant
Ross 154
Ross 248
Radio Source (RS)
Solar Dynamics Observatory (SDO)
67P/Churyumov-Gerasimenko (67P)
Solar Maximum Mission (SMM)
Supernova (SN)
Sodium (Na)
Solar and Heliospheric Observatory (SOHO)
Solar Constant
Solar Eruption
Solar Flare
Solar Nebula
Solar Wind
SSSB
Standard Gravitational Parameter (μ)
Starburst Galaxy
Stardust
Stellar Flare
Stellar Population
Stellar Radius Determination
Stellar Rotation
Stellar Structure
STEREO
Surface Abundance
Surface Brightness
Tidal Locking
Titan
Transit
Transiting Planet
USNO
Variable Star
Visible Light
Vegetation Red Edge (VRE)
James Webb Space Telescope (JWST)
Wilkinson Microwave Anisotropy Probe (WMAP)
Wolf-Rayet Star
Yarkovsky-O'Keefe-Radzievskii-Paddack Effect
Zonal Flow

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