"It's easy to take for granted our nearest star, the star that
provides us with heat and light, ingredients we need for our
existence. But with clear prose, the authors bring us an exciting and
important tale of what we know about our vital neighbor, how we know
it, and what we're still learning at the forefront of research."
Wendy Freedman, Carnegie Observatories, a leader of the Hubble
Space Telescope's Key Project on the Cosmic Distance Scale
"The Sun is life, and for us Earthlings it anchors the most important
real estate in the universe. Until this century we didn't have a clue
as to how the Sun works. Golub and Pasachoff--expert solar
physicists--unveil in everyday language the Sun's wonderfully
energetic alchemy and the many ways it influences our lives. They
provide a harmonious balance between historical reflection and
cutting-edge science."
Leif J. Robinson, Editor Emeritus, "Sky & Telescope" magazine
"The State of the Sun: Here, in a single, beautifully written volume,
Golub and Pasachoff have brought us all up to date about the most important
star of all. This book should appeal to everyone who have gone outside, felt
the heat of the Sun, and wanted to learn more about it. The chapter on
eclipses is particularly good, which is not surprising considering that
Pasachoff has seen more eclipses than anyone else I know. Both authors
are expert and their words are easy to understand, enjoy, and learn from."
David Levy
"A happy life here on Earth depends on many things - sufficient food,
clean water, good health, a friendly environment, harmony, beauty. But
all of these are insignificant compared to one more - sunlight. Without
the sun our Earth would be a dead and frozen wasteland. This excellent
book by two eloquent experts describes our wondrous star. It is huge,
complex, turbulent, constantly erupting and ultimately evolving.
- An important star, an important book."
Paul Hodge, Professor of Astronomy, University of Washington,
Editor, The Astronomical Journal
"This timely book considers the latest achievements and advances in solar
physics. Written by two of the world's most active and brilliant
astrophysicists, it offers clues that may lead to the resolution of many
of the most fundamental questions facing solar physicists, including the
hotly debated question of the nature of the relationship between the sun
and the earth."
Serge Koutchmy, "Directeur de Recherche" at Paris Institut
d'Astrophysique; CNRS-France
S.E.C. User Notes Space Environment Center, NOAA, Issue 39, January 2003
Review from Sky & Telescope, December 2002
Two solar astrophysicists--Golub from the Harvard-Smithsonian Center for Astrophysics and Pasachoff from Williams College--profile current knowledge (and unsolved problems) about the Sun. (Pasachoff is also, he notes, a veteran of 31 solar eclipses, which makes the chapter on eclipses especially vivid.) More than other books on the Sun, Nearest Star focuses on the contributions from satellite observatories, with much discussion about current and planned projects. While the old Harvard Books on Astronomy series is defunct, this volume follows in much the same spirit, being well written for the interested lay reader.
...its details about eclipses capture a lot of the excitement familiar to those of us caught up the fervour surrounding the 1999 eclipse.... This is not surprising as the authors are among the world's leading experts in observing eclipses and have distinguished careers in studies of the solar atmosphere.
Global warning is a daily topic of conversation.... Golub and Pasachoff's book rises to the challenge with some accurate and down-to-earth text about climate, as well as about attempts made by United Nations-sponsored meetings to limit the production of greenhouse gases....
I was impressed by the descriptive nature of the text, which has no mathematics or complex plysics. This is a book for amateur astronomers and scientists who want to know what are the latest findings about the Sun and about some of the developments that led to them.
Review from The Physics Teacher, February 2002, p. 127
The authors, who are well known in the solar-research community, have
written a book for nonscientific readers. However, I suspect it will
be read by astronomy students and teachers for the new insights it
gives about solar physics....
....Astronomy lends itself to popularization because its
discoveries are often found in astonishing images and startling
theories that can be discussed without equations. In this "golden age
of astronomy," many books and articles bring us news of distant cosmic
phenomena, but Nearest Star tells us about the latest discoveries in
our own backyard in a freshing and insightful way. This is a gem of a
book. Read it for information and pleasure.
James O'Connell
Frederick Community College
Review from Physics Today, November 2001, pp. 59-60
Nearest Star: The Surprising Science Of Our Sun tells the story of our
most important star, the Sun, and its relationship to our most
important planet, Earth. It is a story with many facets, and multiple
links to fundamental physics that might surprise as well as engage the
reader. The book is beautifully written and conveys the love that the
authors have for the subject.
...Together, they are uniquely qualified to write a book on the
Sun, and they have produced a truly fascinating tour, complete with an
outstanding set of images.
...This book can appeal to a wide audience.... Overall, the grand
scope of the book will engage folks who enjoy keeping abreast of
current science.
...it is gratifying to see a discussion of the aurora that gets the
basics right....
...In sum, Nearest Star provides an excellent overview of our current
understanding of the Sun and its effects on Earth.
Ramon E. Lopez
University of Texas at El Paso
[John Thomas was Chair of the Solar Physics Division of the American Astronomical Society and is now Scientific Editor of The Astrophysical Journal.]
Nearest Star: The Exciting Science of Our Sun
by Leon Golub & Jay M. Pasachoff
Harvard University Press: 2001. 267 pp. $29.95
Solar physics is in something of a golden age....
Nearest Star beautifully presents these and other recent advances for the = general reader, while also giving a good historical perspective on our = study of the Sun. The authors are especially well qualified to write a = popular book on this topic....
A timely feature of the book is its excellent chapter (entitled "Fire and Ice") on the Sun's influence on the Earth's climate. This chapter contains a thoughtful discussion of the climate system and global warming and shows why we need to have a better understanding of the effects of solar variability on our climate before we can sort out the man-made effects.
Nearest Star is an up-to-date, authoritative and entertaining introduction to the Sun for the general reader. It represents popular science writing at its best - expert authors writing in a clear and lively style, without oversimplification, engaging the reader's creative thinking and imagination.
"Our Day Star," a book review by J. M. LaRoche
An illuminating resource about the Sun for the general audience, has been created by astronomers Golub and Pasachoff. Numerous illustrations, photos, & links augment its clear text.
This reader found the book to have just the right balance between enough technical detail and too much. It is almost a fast paced read. One might almost imagine an adventure story. For those whose appetites have been wetted there are web sites, magazine articles and other books cited to pursue even more information about our star. There are also maintained websites for the book.
[The whole review is at http://www.lunarpages.com/netefx/info/rvw/nearest_star_pr.html
Kirkus Reviews, March 1, 2001, Starred review
*Golub, Leon, & Jay M. Pasachoff
NEAREST STAR: The Surprising Science of our Sun
Harvard Univ. (304 pp.) $29.95
May 2001
ISBN: 0-674-00467-1
It may be "the story of one tiny star among the trillions that have
come and gone during the past 15 billion years," but it sure makes for
soul-stirring, mind-blowing reading.
Golub (Harvard-Smithsonian Center for Astrophysics) and Pasachoff
(Astronomy/Williams Coll.) have put together a superb profile of the sun.
They don't assume any special knowledge on the part of their readers, so
they explain their subject starting with broad overviews and theories--such
as the birth of the sun, its composition, and the various tools used to
understand its history and makeup (including spectroscopy, high-resolution
imaging, and helioseismology). Although the progression into more complex
material is gradual, the authors don't cut readers much slack: There may be
no mathematical equations to wrestle with, but there is much discussion of
parallax and yottawatt, Maunder minimums and limb darkenings, faculae,
auroral electrojets, and the Transit of Venus. These are conducted in
concise language, however, and they glide smoothly between fundamental
questions (Just how come that great roiling sea of gas keeps on burning?
Are stars solid?) and more arcane but immediately relevant topics (such as
the nature and consequences of solar wind on Earth's magnetic field).
Discussions of prominences, flares, and spicules can take your breath away,
as will the considerations of zodiacal light and sunspots and total
eclipses (although there is no mention of everyone's favorite, the green
flash). A final overview of the sun's role in climate, and an outline of
how humans have, in their ineptitude and to their disadvantage, overwhelmed
certain solar influences wrap the proceedings up nicely.
The sun is simply peerless from any angle and this enlightening
biography shows it in all its glory-as bright as daylight. (Color and b&w
illustrations)
Booklist - March 1, 2001
Golub, Leon, and Pasachoff, Jay M.
Nearest Star: The Surprising Science of our Sun, May 2001, 304p. illus.
Harvard, $29.95 (0-674-00467-1) .523.7.
For an object that has remained generally the same for billions of years (without such equability, life on Earth never could have flowered and thrived), the sun is stunningly turbulent and changeable. Golub and Pasachoff, who study the sun professionally, offer amateurs a brilliant, richly illustrated survey of the current state of solar knowledge. That knowledge is amassed most vitally from analyzing the spectra of light, whose varying wavelengths dictate how deeply into the sun astrophysicists may observe. Another source of information is, amazingly, sound and seismic waves, and solar eclipses still attract scientists who study the corona. Although we know now that nuclear fusion powers the sun's pyrotechnics, the detailed workings of its core still puzzles us, for the core produces fewer neutrinos than had been theorized, and its causation of the sun's enormously powerful magnetic field is a complete mystery, as is its relation to the 11-year sunspot cycle. Golub and Pasachoff described the sun's dynamism and effects on Earth in a crystalline, nontechnical fashion perfectly suited to non-specialist readers. -Gilbert Taylor YA/L: For advanced students and well-versed teen astronomy fans. SZ.
Publisher's Weekly - May 2001
NEAREST STAR:
The Surprising Science of Our Sun
LEON GOLUB and JAY M. PASACHOFF
Harvard Univ. $29.95 (304p) ISBN 0-674-00467.
Taking advantage of the increased attention as the sun reaches the peak of its 11-year sunspot cycle, Harvard-Smithsonian astrophysicist Golub and Williams College astronomy professor Pasachoff deliver a clear, detailed and broadly informative overview of the scientific study of our "nearest star" and its effects on our planet. Other recent books cover some of the same territory in more detail (the energy production and internal structure of the sun and other stars in Stardust by John and Mary Gribbin and The Magic Furnace by Marcus Chown; the vulnerability of modern technology to intense solar activity in The 23rd Cycle by Sten Odenwald), but this book shines in its discussion of the properties of the sun's turbulent outer layers (chromosphere, photosphere and corona). It provides space-and astronomy-loving readers in-depth information about the many challenging projects that produced or are producing that knowledge, about advanced projects on the drawing board or in conceptual stages and about Web sites where readers can find more details and up-to-date developments. On the human level, the authors describe practical techniques to enhance the thrill of observing a total solar eclipse. The book ends with a discussion of the interaction between solar and terrestrial phenomena, comparing human contributions to climate change to the climatic influence of solar variation Amateur astronomers will learn much from Golub and Pasachoff's study. Illus. (May)
LIGHT OF OUR LIVES
"Nearest star" by Leon Golub and Jay Pasachoff,
$29.95, Harvard, ISBN 0674004671
The subtitle of Nearest Star is "The surprising science of our Sun."
And it is surprising: our knowledge of this normal dwarf star that
happens to be all-important to life on Earth is very far from
complete. Many puzzles remain, even if we know far more than we did a
few years ago, before data from spacecraft became available. In any
case, Leon Golub and Jay Pasachoff are splendid guides to the subject,
as both are highly distinguished American astronomers who have paid
special attention to the Sun.
Nearest Star is a comprehensive survey, dealing with all aspects
of solar research. It is well written and well illustrated, and there
is a good glossary and a useful bibliography. It is probably not a
book for the complete beginner, or for the amateur observer using
modest equipment; it is not intended to be so. If, however, you are
looking for a reliable, up-to-date and very readable account of modern
solar science, with special emphasis on Earth-Sun relationships, then
this is one for you.
Sir Patrick Moore is an astronomer
Williams Alumni Review, Summer/Fall 2001, p. 10
Nearest Star: The Surprising Science of Our Sun By Leon Golub and Jay M. Pasachoff, Field Memorial Professor of Astronomy. Harvard University Press, 2001. 267 pages. $29.95. A review of what history and science have revealed about the sun, from the first cursory observations to state-of-the-art instruments.
Astronomy magazine - July 2002
Nearest Star: The Surprising Science of Our Sun
Leon Golub and Jay M. Pasachoff, 267 pages, Harvard University Press, Cambridge, Massachusetts, 2001; ISBN 0-674-00467-1; hardcover, $29.95
Many ancient cultures worshipped the sun as a god, a giver of life. While most of us have long given up the notion of the sun as a deity, we cannot deny that life on our planet owes its very existence to it. The sun provides Earth with heat and light. Plants produce the oxygen we breathe with the help of sunlight. The complex interaction between the sun's radiant energy and our atmosphere is responsbilbe for our "hospitable" environment. Despite our apparent good fortune - having just the right place in the solar system around just the right kind of star - the sun really is just an "average" star, only one among billions in the Milky Way Galaxy. All these other stars, however, appear to us as mere points of light in the sky, even in the most powerful telescopes. The proximity of our sun provides us with a unique opportunity to study a star up close.
In "Nearest Star", two of the world's leading solar scientists give us a fascinating and informative account of our sun as a star. Leon Golub, an astrophycist at Harvard University, and Jay M. Pasachoff, Field Memorial Professor at Williams College, trace the history of solar studies from the first visual observations to the latest state-of-the-art space missions. The authors examine the basic physical parameters of the sun and its origin and evolution. They discuss in great detail the structure of the sun, how it works, and how this information is derived both from the things we can see and those we can't. There is a wonderful discussion of eclipses and their scientific value, replete with black-and-white images. Their grand finale is two chapters in which they examine the sun's role in shaping the climate on Earth and the effect of space weather on Earth.
Golub and Pasachoff do not simply present an account of scientific fact. Rather, they show us how the process of science works. For example, in discussing the structure of the sun, they examine the concept of stellar opacity - which can be thought of as a resistance of matter to the flow of radiation. They explain how opacity effects lead to an observed darkening of the sun's disk going from the center out to the limb, an effect called "limb darkening." They also show how opacity affects what is seen in the region of spectral lines such as the calcium H and K lines and how these opacity effects are used to probe the structure of the sun at various depths. Throughout, the authors emphasize why and how we study the sun at many different wavelengths and what has been discovered by looking at the sun in each of these wavelength regimes.
"Nearest Star" is a delight to read. Golub and Pasachoff transmit not only their obvious expertise but also a genuine affection for the subject. The book is richly illustrated with both black-and-white images and a nice selection of color plates; it also has a necessary glossary of physics and astronomy terms. A particularly nice feature of "Nearest Star" is the critical examination of just how the sun influences Earth's climate and the role of both industrial emissions and solar factors on climte changes.
"Nearest Star" will surely leave you with a renewed appreciation for the beauty, complexity, and importance of our nearest star, the sun.
Jennifer Birriel, Morehead State University
Links to Solar Websites, including Daily Images and Spacecraft Descriptions
Other books by Jay M. Pasachoff
The latest values of the solar constant as measured by the VIRGO
experiment on SOHO, along with past measurements from several
spacecraft, are available on line at
http://www.pmodwrc.ch/solar_const/solar_const.html
from the World Radiation Center in Davos, Switzerland.
On p. 2, line 5, of Nearest Star, "one million" should actually be "one billion."
p. 15
The increase in intensity is the square of the ratio of the primary
mirror diameter to the minimum secondary diameter, neglecting the
shadowed portion of the primary. The minimum diameter needed for the
secondary, in turn, is related to the secondary's focal length.
p. 21
Fig. 1.10 The refraction in the prism itself of the incoming slit of
light after it hits the first face of the prism is not shown.
p. 44
Avercamp
Figure 2.6 dates from before AD 1630, well before the dates usually
listed for the Maunder minimum of 1645-1705. Sunspot records from
that time are sketchy, and the reported lack of sunspots could already
have started. Avercamp's and Bruegel's pictures of ice-skating on
canals from this period are often used to illustrate the point we are
making. The canals freeze occasionally now, but not often.
Whether the Maunder minimum really occurred is
still debated.
p. 46, line -5
add: European Space Agency instruments will be sent aloft to measure
the solar constant from the International Space Station.
p. 54, Fig. 3.1: This image is printed as a negative.
p. 55, Fig. 3.2: Limb darkening is correctly shown on the drawing of the surface in the left half of the image. The shells get blacker as you go deeper into the sun only as a display on the printed page; actually, the temperature increases inward, as is correctly explained in the text.
pp. 61 and 80: solar parameters in addition to atomic ones determine visibility of spectral lines, as is correctly discussed in various places.
Fig. 3.19, p. 89:
As is specified correctly in the caption but wrong in the labels on
the spectrum, the observed h line (2803 A) of ionized magnesium is at
a longer wavelength than the k line (2795 A).
p. 103
The figure
(Plate IX) was arranged vertically rather than horizontally. I
think we should change lines 12-13 from "top left and bottom
left" to "first and third". We also need to change "bottom right"
to "last".
p. 109, first word: "2solving" should be "solving"
p. 111, line -13: Change "... enormous number of different waves ..." to "... enormous number of different sound waves ...".
p. 115, line -8: change "... lower the temperature of the Sun (this is why sunspots appear dark) and this in turn changes the sound speed." to read ".. alter the propagation of sound waves through the subsurface regions."
pp. 119-121
saros
Serge Koutchmy points out that the Babylonians did not use the term
saros as we use it today. It was applied to something else, and was
in terms of the lunar calendar.
See "Les eclipses de Soleil" of the Bureau des Longitudes, France
(EDP Sciences 1999), in a chapter by Michel Lerner and Denis Savoie.
pp. 126-127
Serge Koutchmy has pointed out that Gordon Newkirk did not invent the
radial-filter system, which was used as early as 1900 and then
reinvented for the eclipse of 1961 by Laffineur in France. Koutchmy
has himself taken excellent series of radial-filter images. Newkirk
is properly credited with the coronal-camera system that successfully
used a radial filter at a series of eclipses.
See "Total Eclipses of the Sun" by S. Koutchmy and P. Guillermier
(Springer-Praxis, 1999).
p. 173
change "The first mission in the line of solar-terrestrial probes is ..."
to "One of the missions in the line of solar-terrestrial probes
is ...", referring to the STEREO mission.
pp. 179-181: The Solar Probe Mission has been cancelled. The description of this mission will be replaced by a description of the ESA/NASA Solar Orbiter Mission.
p. 181
Add: The European Space Agency's Solar Orbiter is to orbit the Sun
relatively closely in the 2008-2013 time frame. Because it will
be only 1/5 of Earth's distance from the Sun, its images will be about 10
times better than current capabilities.
p. 196, line -4: "Opposite charges" should be "like charges repel."
p. 216, paragraph beginning "In the United States ..." add at end of paragraph "(... is not in sight), and in 2001 the United States renounced its signature on the treaty."
p. 216, line 12: change "was settled" to "was apparently settled"
p. 217, line 18 (i.e., at end of paragraph): add "The Dutch company Royal Dutch Shell, has created a division named Shell Hydrogen to develop hydrogen as a fuel source."
p. 217, line 21 (after "... for their implementation): add "A very small improvement in fuel effiency standards for cars and trucks of only a few miles per gallon could sharply reduce the U.S. dependence on imported oil."
p. 217, line 5: change "has not changed" to "has actually declined."
p. 220, line 10, after the sentence ending
" ... from some location on the Sun." Please add this sentence:
"Such a suggestion had been made as early as 1908 by Kristian
Birkeland to explain the origin of the aurora."
p. 222, line 9, after "... not well received."
please add: "Chapman in particular argued against it, as he had
argued earlier in the century against Birkeland's explanations
for magnetic storms."
p. 221, last sentence of last paragraph: all the "billionth"'s should be "millionth"'s.
p. 44, footnote
HOW WELL WAS THE SUN OBSERVED DURING THE MAUNDER MINIMUM?
Douglas V. Hoyt and Kenneth H. Schatten
Abstract. In this paper we examine how well the Sun and sunspots were observed during the Maunder Minimum from 1645 to 1715. Recent research has given us the date of observations by Hevelius, Picard, La Hire, Flamsteed, and about 70 other observers. These specific obsevations allow a 'lower estimate' of the fraction of the time the Sun was observed to be deduced. It is found that 52.7% of the days have recorded observations. There are additional 12 observers who provide general statements that no sunspots were observed during specific years or intervals despite diligent efforts. Taking these staements to mean, unrealistically, that every day during these intervals was observed, gives an 'upper estimate' of 98% of the days. If the general statements are relaxed by assuming that 100+/-50 days per year were actually observed by these diligent observers, than our 'best estimate' is that 68%+/-7% of the days during the Maunder Minimum were observed. In short, this supports the view that the Maunder Minimum existed and was not an artifact of few observations. Some sunspots are probably still missed in modern compilations, but the existence of a prolonged sunspot minimum would not be threatened by their discovery in future research. Additional support for intense scrutiny of the Sun comes from a report of a white-light flare in 1705 and from the numerous reports of new sunspots entering the disk of the Sun.
from the scientific journal "Solar Physics," vol. 165: pp. 181-192, 1996.
p. 217, line 18 (i.e., at end of paragraph): add "The Dutch company Royal Dutch Shell, has created a division named Shell Hydrogen to develop hydrogen as a fuel source."
p. 217, line 21 (after "... for their implementation): add "A very small improvement in fuel effiency standards for cars and trucks of only a few miles per gallon could sharply reduce the U.S. dependence on imported oil."