Chitral Astronomical Society

Chitral Astronomical Society

Skies over the Hindu Kush

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Phenomenon

Poynting–Robertson Effect

Solar radiation dragging dust grains sunward.

A radiation drag that causes interplanetary dust grains to slowly spiral toward the Sun over millions of years.

Overview

A radiation drag that causes interplanetary dust grains to slowly spiral toward the Sun over millions of years.

See also

Aurora (Northern/Southern Lights)

Solar wind painting the upper atmosphere.

Solar Flare

A sudden explosive release of solar energy.

Synchrotron Radiation

Electromagnetic radiation from spiralling charges.

Bremsstrahlung

'Braking radiation' from decelerating charges.

Greenhouse Effect

Atmospheric gases trapping infrared radiation.

Sputtering (Atmospheric)

Atmosphere knocked off by solar-wind ions.

Quick Facts

Chitral Astronomical Society

Public astronomy and dark-sky advocacy in the Hindu Kush.

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Data & Credits

  • Planetarium: Stellarium Web
  • Daily image: NASA APOD
  • Ephemeris: astronomy-engine
  • Weather: Open-Meteo

Monthly sky calendar

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