2009 Total Solar Eclipse
China • July 22, 2009
A composite image of the 2009 total solar eclipse based on dozens of images taken at Tianhuangping, China, by Jay Pasachoff, Sara Dwyer '11, and Rachel Wagner-Kaiser (Keck Northeast Astronomy Consortium Summer Fellow, Vassar '10) and computer-processed by Wendy Carlos.
A total solar eclipse image from Tianhuangping, China (outside Hangzhou at 900 m altitude) during the 22 July 2009 eclipse, merged with a SOHO Extreme- ultraviolet Imaging Telescope (EIT) disk image in the helium 304 Å emission line and a Large-Angle Spectrometric Coronagraph (LASCO) image of the outer corona. The corona was very sparse because of the exceedingly low phase of the sunspot cycle, really a cycle in the solar magnetic field known as the solar-activity cycle. Williams College Eclipse Expedition: Jay M. Pasachoff, Bryce A. Babcock, Katherine DuPré, Sara Dwyer, Rachel Wagner-Kaiser, Yung Hsien Ng Tam, Huajie Cao; EIT image courtesy EIT Team, NASA's Goddard Space Flight Center; LASCO image courtesy of LASCO Team, Naval Research Laboratory; compositing by Steele Hill, NASA's Goddard Space Flight Center; eclipse image processed by Wendy Carlos out of many individual images in order to bring out coronal detail.
The 2009 Williams College Eclipse Team (with sponsorship from the Committee for Research and Exploration of the National Geographic Society, Williams College, the National Science Foundation through the Keck Northeast Astronomy Consortium, Vassar College, the Rob Spring Fund, the Brandi Fund, and other private sources)
New York Times blog about our eclipse expedition (#1)
Professor Jay Pasachoff (Jay.M.Pasachoff@williams.edu)
Williams College--Hopkins Observatory
33 Lab Campus Drive
Williamstown, MA 01267
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