Longmont Astronomical Society

  • Home
  • 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.

Copyright Longmont Astronomical Society, 2019. All rights reserved.
The Longmont Astronomical Society is a 501(c)3 non-profit organization. P.O.Box 806, Longmont, CO 80502-0806, USA

Powered by Wild Apricot Membership Software