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  • LAS Meeting - Dr. Ricky Egeland of NCAR

LAS Meeting - Dr. Ricky Egeland of NCAR

  • June 20, 2019
  • 7:00 PM - 9:00 PM
  • First Evangelical Lutheran Church on 3rd and Terry in downtown Longmont.

Solar Magnetic Variability


The Sun is a giant magnet with a dynamic surface, showing varying amounts of magnetic features at any given time, most notably changing with the 11-year solar cycle.  These varying magnetic features produce very small color-dependent variations in the brightness of the Sun, which allows us to use brightness changes as a proxy for the Sun's magnetism.  The same principle applies to other more distant stars, allowing us to study their magnetic variability.  I will discuss proxy observations of solar and stellar magnetism as well as the feasibility of observing stellar spectra on an amateur budget.

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