Astronomer Profile: Dr. Jeff Hall, Observatory Director

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Note: Seven Lowell Observatory astronomers will participate in the 2017 Lowell Observatory Solar Eclipse Experience in Madras, Oregon on August 20-21. We will profile each in separate blogs. Today, we introduce Jeff Hall, who also serves as Observatory director.

Education

Jeff Hall earned a BA in physics from Johns Hopkins University in 1986 and a Ph.D. in astronomy and astrophysics from Pennsylvania State University in 1991.

Research Interests

Dr. Jeff Hall joined the Lowell Observatory staff in 1992 as a postdoctoral research fellow. He works with a team of other scientists on Lowell’s Solar-Stellar Spectrograph project, a long-term program involving monitoring of solar and stellar activity cycles, with the goal of lending an astronomical perspective to solar influences on terrestrial climate.

Dr. Hall has served as Lowell’s director since June 2010. He is the incoming chair of the American Astronomical Society’s standing committee on light pollution, space debris, and radio interference, and has played a leading role in dark-sky preservation efforts around Arizona.

In the Community

In the community, he serves as a member of Flagstaff’s leadership group, the Northern Arizona Leadership Alliance, and is former president of the Governing Board of Northland Preparatory Academy, a college-prep charter school, as well as of the Board of Directors of the Flagstaff Symphony Orchestra. His principal avocation is music and he has been the substitute organist for the Episcopal Church of the Epiphany as long as he has lived in Flagstaff.

Fun Fact

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Dr. Hall is an avid bicyclist and for years has tracked his cycling progress by a system named after early 20th century astrophysicist and biking enthusiast Arthur Eddington, who devised the scheme. The so-called Eddington Number (which Eddington was far too modest to call it himself) is defined as “the largest integer n, such that one had cycled at least n miles on n different days”. Hall’s current Eddington Number is 36.

Lowell Observatory Solar Eclipse Experience Presentations

Date: Sunday, August 20, 6 p.m.; Monday, August 21, 7 a.m.

Title: What to Expect When You’re Expecting an Eclipse

Description: Circumstances of eclipses, what we see when one happens, what we learn about the Sun (and other stars) from eclipses.

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