• Space/Science
  • GeekSpeak
  • Mysteries of
    the Multiverse
  • Science Fiction
  • The Comestible Zone
  • Off-Topic
  • Community
  • Flame
  • CurrentEvents

Recent posts

Fly like an eagle BuckGalaxy October 10, 2025 2:58 pm (CurrentEvents)

Uploading personal photos. One last time.. RobVG October 10, 2025 2:51 pm (GeekSpeak)

Where we are now RL October 8, 2025 6:02 pm (CurrentEvents)

Blasphemy RL October 7, 2025 2:40 pm (Space/Science)

I cannot listen podrock October 5, 2025 9:27 am (CurrentEvents)

Down Under Report ER October 2, 2025 5:41 pm (Space/Science)

The 3 Body Problem (Spoilers) RobVG October 2, 2025 8:04 am (Science Fiction)

The Expanse is back! BuckGalaxy September 25, 2025 11:21 am (Science Fiction)

Trump Restores $20 Billion in Foreign Aid BuckGalaxy September 24, 2025 8:36 pm (CurrentEvents)

They've cured AIDS RobVG September 19, 2025 9:44 am (CurrentEvents)

Get rid of the comedians. podrock September 19, 2025 7:43 am (CurrentEvents)

From heckling to violence. A growing acceptance of both. RobVG September 17, 2025 4:46 pm (CurrentEvents)

Home » Space/Science

Sirius Power August 4, 2017 9:07 pm RL

In preparing a presentation, I wanted to compare the power per square meter of a laser beam on the surface of the Earth to the power per square meter of the light of the brightest star in the sky…

It turns out that the intensity of light from Sirius (incident on the surface of earth) is 0.1 to 0.5 microWatts per square meter- integrated over the surface of the Earth that means the total power incident on Earth from Sirius is ~ 13 to 60 Mega-Watts… enough to power a few 10′s of thousands of homes.

I am not sure what I expected, but the result surprised me…

    Search

    The Control Panel

    • Log in
    • Register