Understanding the magnitude and occurrence of solar storms is key to predicting events that can be harmful to thousands of Earth-orbiting satellites and the welfare of astronauts.
High Altitude Observatory (HAO) staff was invited by UCAR Science Education to present “Space Weather” to the public at the Little Shop of Physics 29th Annual Open House at the Colorado State University in Fort Collins.
Recently published, precise stellar photometry of 72 Sun-like stars obtained at the Fairborn Observatory between 1993 and 2017 is used to set limits on the solar forcing of Earth’s atmosphere of ±4.5 W m−2 since 1750.
One of the most robust features of the solar magnetic cycle is that the stronger cycles rise faster than the weaker ones. This is popularly known as the Waldmeier Effect, which is known for more than 100 years.
The American Astronomical Society (AAS) NOVA website is highlighting a recent publication by HAO's Ricky Egeland (graduate research fellow) titled The Mount Wilson Observatory S-Index of the Sun. The new paper has been accepted for publication in the Astrophysical Journal.
The study of Sun-like stars helps us to put the Sun in context. HAO Newkirk Fellow Ricky Egeland has co-authored a new publication with Space Science Institute scientist Travis Metcalfe and Carnegie Fellow Jennifer van Saders.
View videos of past colloquia