Sky and Telescope - June 2018 - 35

UNIV ERSIT Y OF CHICAGO / Y ERK ES OBSERVATORY (2)

robustness, served Hale well as he grew and moved on to
study at the collegiate level.
During Hale's student years at the Massachusetts Institute
of Technology (MIT), he volunteered at the Harvard College
Observatory. Edward Pickering, the observatory director,
was an early believer in the "new" astronomy - studying
the physical properties of stars rather than just their positions and movements - and their experience together likely
inﬂuenced Hale's own ideas about the science. Hale's ﬁrst
technological contribution was the spectroheliograph, a device
he invented to photograph the Sun at a single wavelength of
light. With it, he determined that sunspots are vortices in the
solar atmosphere, a discovery that formed the basis for his
baccalaureate thesis.
Hale married two days after his graduation from MIT and,
when he returned from his honeymoon, he set up a personal observatory at the family's Kenwood (Chicago) home
with a 12-inch refractor, a gift from his father. He spent the
next two years conducting research and teaching until he
was recruited as a faculty member to the newly established
University of Chicago in 1892. Hale wanted a bigger research
telescope and hoped that the university might be a path to
better equipment.

His interests were diverse, taking
him from the woodworking shop
and laboratory he built with his
brother, to observing the Moon
and planets . . .
The same year he joined the University of Chicago, Hale
addressed a meeting of the American Association for the
Advancement of Science (AAAS) in New York, where he
learned that the University of Southern California had
ordered two 40-inch lenses for a new telescope on Mount
Wilson, California, but had been unable to complete payment on them. Hale instantly went to work on a plan to
bring the lenses to the Midwest. With the help of University
of Chicago president William Rainey Harper, Hale obtained
money for the lenses and telescope construction from
ﬁnancier and transportation magnate
Charles Yerkes.

sk yandtelescope.com * J U N E 2 018

35

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Sky and Telescope - June 2018

Table of Contents for the Digital Edition of Sky and Telescope - June 2018

Contents
Sky and Telescope - June 2018 - Cover1
Sky and Telescope - June 2018 - Cover2
Sky and Telescope - June 2018 - 1
Sky and Telescope - June 2018 - Contents
Sky and Telescope - June 2018 - 3
Sky and Telescope - June 2018 - 4
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