SPD Parker Lecture: Jeffrey C. Hall

Thursday’s scientific sessions began with another SPD Parker Lecture, this time by Jeffrey Hall (Lowell Obs.), who examined how long-term monitoring of solar twins has revealed quite a few with prolonged activity minima, providing new insights into the Sun’s 17th-century Maunder minimum. AAS photo © 2012 Joson Images.

220thAmerican Astronomical SocietyAnchorage AlaskaJoson Images