HAO News

HAO News

Anihid Blaisdell

A bumper crop of HAO summer interns!

Summer, 2017—We hosted twelve summer students at HAO. They worked on a range of projects, from building telescopes to employing numerical models to analyzing observations and simulation data. Meet the students and hear their stories.

Annie Maunder

Annie Maunder, A Pioneer of Solar Astronomy

If you have visited the High Altitude Observatory (HAO) at NCAR in Boulder, CO, you may recall seeing the Maunder’s original butterfly diagram. The chart resembles three butterflies traveling west. Drawn by Annie S.D. Maunder and E. Walter Maunder, it demonstrated for the first time the movement of sunspot emergence from the poles toward the equator over the sun's 11-year cycle.