Some Planetary Perspective (Anthony Watts, Meteorologist)

- It would take about 109 earths to equal the width of the suns diameter (Sun=1.39 million km Earth=12,700 km)
- Over 1 million Earths would fit inside the Sun’s volume
- The sun has a total luminosity output of 386 YottaWatts
(386,000,000,000,000,000,000,000,000 watts, some background here and here)
- The total luminous energy output received by earth from the sun is 174 PETAWATTS (174,000,000,000,000,000) watts.
- A 0.1% increase in luminosity dumps an extra 174 trillion watts (174,000,000,000,000) watts into our planetary energy balance.