Frank Scott Hogg
Encyclopedia
Frank Scott Hogg was born to Dr. James Scott Hogg and Ida Barberon in Preston
, Ontario
.
After earning and undergraduate degree from the University of Toronto, Hogg received the second doctorate in astronomy awarded at Harvard University
in 1929 where he pioneered in the study of spectrophotometry
of star
s and of spectra
of comet
s. In September 1931, he married Helen Sawyer Hogg
. During World War II, he developed a two-star sextant
for air navigation. He was the head of the Department of Astronomy at the University of Toronto
and director of the David Dunlap Observatory
from 1946 until his death. During this time he pursued the observatory's major research program to study the motions of faint stars in the line of sight.
The crater Hogg
on the Moon
is co-named for him and Arthur Hogg
.
Cambridge, Ontario
Cambridge is a city located in Southern Ontario at the confluence of the Grand and Speed rivers in the Regional Municipality of Waterloo, Ontario, Canada. It is an amalgamation of the City of Galt, the towns of Preston and Hespeler, and the hamlet of Blair.Galt covers the largest portion of...
, Ontario
Ontario
Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....
.
After earning and undergraduate degree from the University of Toronto, Hogg received the second doctorate in astronomy awarded at Harvard University
Harvard University
Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...
in 1929 where he pioneered in the study of spectrophotometry
Spectrophotometry
In chemistry, spectrophotometry is the quantitative measurement of the reflection or transmission properties of a material as a function of wavelength...
of star
Star
A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...
s and of spectra
Electromagnetic spectrum
The electromagnetic spectrum is the range of all possible frequencies of electromagnetic radiation. The "electromagnetic spectrum" of an object is the characteristic distribution of electromagnetic radiation emitted or absorbed by that particular object....
of comet
Comet
A comet is an icy small Solar System body that, when close enough to the Sun, displays a visible coma and sometimes also a tail. These phenomena are both due to the effects of solar radiation and the solar wind upon the nucleus of the comet...
s. In September 1931, he married Helen Sawyer Hogg
Helen Sawyer Hogg
Helen Battles Sawyer Hogg, CC was a prolific astronomer noted for her research into globular clusters...
. During World War II, he developed a two-star sextant
Sextant
A sextant is an instrument used to measure the angle between any two visible objects. Its primary use is to determine the angle between a celestial object and the horizon which is known as the altitude. Making this measurement is known as sighting the object, shooting the object, or taking a sight...
for air navigation. He was the head of the Department of Astronomy at the University of Toronto
University of Toronto
The University of Toronto is a public research university in Toronto, Ontario, Canada, situated on the grounds that surround Queen's Park. It was founded by royal charter in 1827 as King's College, the first institution of higher learning in Upper Canada...
and director of the David Dunlap Observatory
David Dunlap Observatory
The David Dunlap Observatory is a large astronomical observatory site once owned by the University of Toronto, located just north of the city in Richmond Hill, Ontario within a estate. Its primary instrument is a 74-inch reflector telescope, at one time the second largest telescope in the world,...
from 1946 until his death. During this time he pursued the observatory's major research program to study the motions of faint stars in the line of sight.
The crater Hogg
Hogg (crater)
Hogg is a lunar crater on the Moon's far side. It lies less than a crater diameter to the south-southwest of the somewhat larger Kiddinu. This is an old, worn feature with an outer rim that has been eroded to the point where it just forms a rounded crest about the interior. Small craterlets lie...
on the Moon
Moon
The Moon is Earth's only known natural satellite,There are a number of near-Earth asteroids including 3753 Cruithne that are co-orbital with Earth: their orbits bring them close to Earth for periods of time but then alter in the long term . These are quasi-satellites and not true moons. For more...
is co-named for him and Arthur Hogg
Arthur Robert Hogg
Arthur Robert Hogg was an Australian physicist and astronomer.He was born in Melbourne, Victoria, and was educated at the Royal Melbourne Institute of Technology and at the University of Melbourne where he earned his B.Sc. in 1923 and M.S. in 1925...
.