The Sun

Sun_Solar_Dynamics_Observatory_-_20100801.jpg Sun Metrics

Spectral Type: G2 V
Composition:
92.1% Hydrogen
7.8% Helium
Surface Temperature:
10,000 °F
5,500 °C
Rotation Period:
26.8 days at equator
36 days at poles
Mean Radius:
432,168.6 miles
695,508 km
109.2 x that of Earth
Volume:
1,301,018.805 Earths
Mass:
4,385,214,857,119,400,000,000,000,000,000 lbs  1,989,100,000,000,000,000,000,000,000,000 kg
333,060.402 x Earth's
Surface Gravity:
27.96 x Earth's surface gravity
Sidereal Rotation Period (Length of Day):
609.12 hours
25.38 Earth days
Mean Distance to Earth:
92.96 million mi
149.60 million km
1 astronomical unit

WEB RESOURCES
Reminder: email links to visitors

NASA/JPL Links
The Sun Facts and Figures
The Sun
Missions to Explore the Sun
Solar and Heliospheric Observatory
SOHO Near Real-Time Images

NOAA Links
Daily Sunspot Number
Space Weather Now
Today's Space Weather
Space Weather Scales
Space Weather Prediction Center
Todays Space Weather

NSO
National Solar Observatory
GONG H Alpha Network

SolarHam 
The Sun Today

Daily Sunspot Summary
Images
Sunspot Count and Magnetic Class

Wikipedia Links
The Sun
Sunspots

Other Links
Space Weather
FAQ about the Sun
Daily Sunspot Summary
Sungazer
Stanford Solar Center
Gazetteer of Planetary Nomenclature

Sky & Telescope Magazine - Observing
Astronomy Magazine

Good explanation of Solar Processes
Coronal Mass Ejections
Solar Flares
The Sun's Magnetic Field
Solar Prominences
Sunspots

NASA Missions

NASA Solar System

MULTIMEDIA
Click on image/link for larger view

IMAGES______________________

Sun_parts.jpg Solar cross-section

Solar-cycle-data.png Solar cycle variations during last 30 years

Sunspot-number.png Observed sunspots during last 250 years, shows 11 year cycle

Solar_Life_Cycle.png Life-cycle of the Sun

MOVIES ___________________

Silicon Valley Lecture Series (iTunes)

INTERACTIVES______________

Explanation of the structure of the Sun

SS-simulator.jpg
Solar System Simulator
- JPL

logo-eotss-main.png
Eyes on the Universe
- JPL

MapAPlanet-banner.jpg
Map a Planet
- USGS

Documents and PowerPoints
The Sun.ppt

Related Resources on MGGP
Eclipses
Transits and Occultations
SDO
STEREO
SOHO
Seeing the Sun
Solar Viewing Telescopes

Mission Resources
SDO Images
SOHO Real-time Movies

 

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