Fred Espenak is a retired
emeritus
''Emeritus'' (; female: ''emerita'') is an adjective used to designate a retired chair, professor, pastor, bishop, pope, director, president, prime minister, rabbi, emperor, or other person who has been "permitted to retain as an honorary title ...
American
astrophysicist. He worked at the
Goddard Space Flight Center
The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
. He is best known for his work on
eclipse
An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three ce ...
predictions.
He became interested in astronomy when he was 7–8 years old, and had his first telescope when he was around 9–10 years old.
Espenak earned a bachelor's degree in physics from
Wagner College
Wagner College is a private liberal arts college in Staten Island, New York City. Founded in 1883 and with an enrollment of approximately 2,200 students, Wagner is known for its academic program, The Wagner Plan for the Practical Liberal Arts. I ...
,
Staten Island
Staten Island ( ) is a borough of New York City, coextensive with Richmond County, in the U.S. state of New York. Located in the city's southwest portion, the borough is separated from New Jersey by the Arthur Kill and the Kill Van Kull an ...
, where he worked in the
planetarium
A planetarium ( planetariums or ''planetaria'') is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation.
A dominant feature of most planetarium ...
. His master's degree is from the
University of Toledo
The University of Toledo (UToledo or UT) is a public research university in Toledo, Ohio. It is the northernmost campus of the University System of Ohio. The university also operates a Health Science campus, which includes the University of ...
, based on studies he did at
Kitt Peak Observatory of eruptive and flare stars among
red dwarf
''Red Dwarf'' is a British science fiction comedy franchise created by Rob Grant and Doug Naylor, which primarily consists of a television sitcom that aired on BBC Two between 1988 and 1999, and on Dave (TV channel), Dave since 2009, gaining a ...
s.

He was employed at
Goddard Space Flight Center
The Goddard Space Flight Center (GSFC) is a major NASA space research laboratory located approximately northeast of Washington, D.C. in Greenbelt, Maryland, United States. Established on May 1, 1959 as NASA's first space flight center, GSFC emp ...
, where he used
infrared spectrometer
Infrared spectroscopy (IR spectroscopy or vibrational spectroscopy) is the measurement of the interaction of infrared radiation with matter by absorption, emission, or reflection. It is used to study and identify chemical substances or function ...
s to measure the atmospheres of planets in the
Solar System
The Solar System Capitalization of the name varies. The International Astronomical Union, the authoritative body regarding astronomical nomenclature, specifies capitalizing the names of all individual astronomical objects but uses mixed "Solar ...
.
He provided
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research.
NASA was established in 1958, succeedi ...
's eclipse bulletins since 1978. He is the author of several canonical works on eclipse predictions, such as the ''Fifty Year Canon of Solar Eclipses: 1986–2035'' and ''Fifty Year Canon of Lunar Eclipses: 1986–2035'',
both of which are standard references on eclipses.
The first eclipse he saw was the
solar eclipse of March 7, 1970
A total solar eclipse occurred on March 7, 1970, visible across most of North America and Central America.
A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a vi ...
, which sparked his interest in eclipses,
and he has since seen over 20 eclipses.
Together with
Jean Meeus
Jean Meeus (born 12 December 1928) is a Belgian meteorologist and amateur astronomer specializing in celestial mechanics, spherical astronomy, and mathematical astronomy.
Meeus studied mathematics at the University of Leuven in Belgium, w ...
, he published the ''Five Millennium Canon of Solar Eclipses'' in 2006, which covers all types of solar eclipses (partial, total, annular, or hybrid) from 2000 BCE to AD 3000,
and the ''Five Millennium Canon of Lunar Eclipses'' in 2009, which lists all lunar eclipses (penumbral, partial, or total) in that time span.
Later, he published the more compact ''Thousand Year Canon of Lunar Eclipses 1501 to 2500'',
the ''Thousand Year Canon of Solar Eclipses 1501 to 2500'',
and the ''21st Century Canon of Solar Eclipses''.
He is also a co-author (with
Mark Littmann and
Ken Willcoxof
Ken or KEN may refer to:
Entertainment
* ''Ken'' (album), a 2017 album by Canadian indie rock band Destroyer.
* ''Ken'' (film), 1964 Japanese film.
* ''Ken'' (magazine), a large-format political magazine.
* Ken Masters, a main character in ...
) of ''Totality: Eclipses of the Sun''.
He was the co-investigator of an atmospheric experiment flown on
Space Shuttle Discovery
Space Shuttle ''Discovery'' ( Orbiter Vehicle Designation: OV-103) is one of the orbiters from NASA's Space Shuttle program and the third of five fully operational orbiters to be built. Its first mission, STS-41-D, flew from August 30 to ...
.
He is also known as "Mr. Eclipse."
He gives public lectures on eclipses and astrophotophy. Astronomical photographs taken by Espenak have been published in ''
National Geographic'', ''
Newsweek
''Newsweek'' is an American weekly online news magazine co-owned 50 percent each by Dev Pragad, its president and CEO, and Johnathan Davis, who has no operational role at ''Newsweek''. Founded as a weekly print magazine in 1933, it was widely ...
'', ''
Nature
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans ar ...
'', ''
New Scientist
''New Scientist'' is a magazine covering all aspects of science and technology. Based in London, it publishes weekly English-language editions in the United Kingdom, the United States and Australia. An editorially separate organisation publish ...
'', and ' magazines.
He met Patricia Totten while in India in 1995. They married in 2006.
[Joyce Lee and Spencer Bakalar]
“He Met His True Love While Chasing Eclipses. Now They Chase Them Together”
“Time”, August 17, 2017.
He retired in 2009.
Asteroid
An asteroid is a minor planet of the Solar System#Inner solar system, inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic o ...
''
14120 Espenak 141 may refer to:
* 141 (number), an integer
* AD 141, a year of the Julian calendar
* 141 BC
__NOTOC__
Year 141 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Caepio and Pompeius (or, ...
'' was named in his honor in 2003.
See also
*
Saros (astronomy)
The saros () is a period of exactly 223 synodic months, approximately 6585.3211 days, or 18 years, 10, 11, or 12 days (depending on the number of leap years), and 8 hours, that can be used to predict eclipses of the Sun and Moon. One saros peri ...
References
External links
*
{{DEFAULTSORT:Espenak, Fred
American astrophysicists
Goddard Space Flight Center people
Living people
People from Staten Island
Wagner College alumni
University of Toledo alumni
Scientists from New York (state)
1953 births