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Ccd Photometry Of The Open Cluster Tombaugh 5 In The Vilnius System
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Book Synopsis CCD Photometry of the Open Cluster Tombaugh 5 in the Vilnius System by : Justas Zdanavičius
Download or read book CCD Photometry of the Open Cluster Tombaugh 5 in the Vilnius System written by Justas Zdanavičius and published by . This book was released on 2011 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of eight-color CCD photometry of 674 stars in the direction of the open cluster Tombaugh 5 in Camelopardalis. The stars are observed in the Vilnius system supplemented by the broad-band I filter; the field is of 22' diameter, the limiting magnitude is V = 17.7 mag. The catalog contains the coordinates, V magnitudes, seven color indices, two-dimensional spectral types determined from photometric parameters, interstellar extinctions and distances. The color-magnitude diagram plotted for 480 individually dereddened stars is used to identify cluster members and to determine the distance (1.74 kpc) and age (200-250 Myr) of the cluster. The faintest cluster stars classified are of spectral class G0. The cluster contains two blue stragglers of spectral classes B2-B4, both of them seem to be visual binaries. The extinction AV for the cluster stars is non-uniform, being spread between 2 and 3 mag, with a mean value of 2.42 mag. The extinction vs. distance dependence can be modeled by the Parenago exponential curve with dust concentrations in the Camelopardalis dark clouds at about 150 pc and the Cam OB1 association clouds at 0.9-1.0 kpc.
Book Synopsis Deep CCD Photometry of Old Open Clusters by : Marc Kassis
Download or read book Deep CCD Photometry of Old Open Clusters written by Marc Kassis and published by . This book was released on 1996 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Four-color CCD Photometry of the Open Cluster NGC 2355 by : Patrick Tod Colegrove
Download or read book Four-color CCD Photometry of the Open Cluster NGC 2355 written by Patrick Tod Colegrove and published by . This book was released on 1992 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deep CCD Photometry of the Open Cluster NGC 6664 by : William Jerome Jacobs
Download or read book Deep CCD Photometry of the Open Cluster NGC 6664 written by William Jerome Jacobs and published by . This book was released on 1996 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Large-Scale Errors in CCD Photometry of M 67 by :
Download or read book Large-Scale Errors in CCD Photometry of M 67 written by and published by . This book was released on 2003 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accuracy of new charge-coupled-device (CCD) photometry in the Vilnius system of the M67 cluster is analyzed. The observational material was obtained during six observing runs in 1994 to 2001 with the 1-meter telescope of the U.S. Naval Observatory Flagstaff Station. The main task was to establish CCD standards of high accuracy and to eliminate large-scale errors from their CCD photometry. The authors compare their results with the published CCD photometric data in other photometric systems. The comparison reveals considerable systematic errors in some datasets. (4 figures, 3 refs.).
Book Synopsis CCD Photometry of Open Star Clusters by : William Lee Powell
Download or read book CCD Photometry of Open Star Clusters written by William Lee Powell and published by . This book was released on 2000 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Photometric CCD Study of the Open Cluster NGC 2423 by : Ella K. Braden
Download or read book A Photometric CCD Study of the Open Cluster NGC 2423 written by Ella K. Braden and published by . This book was released on 2004 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The World at Night by : Babak Tafreshi
Download or read book The World at Night written by Babak Tafreshi and published by White Lion Publishing. This book was released on 2019-11-19 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: See the full beauty of our night sky revealed as never before in over 200 photographs from around the world. Bringing together the images of over 40 photographers across 25 countries, be astounded by the lights of the night sky in some of the darkest places on earth; discover the beauty of galaxies, planets, and stars; view great celestial events; and see some of the world’s most important landmarks against the backdrop of an incredible nightscape. Babak Tafreshi, founder of the international organization The World at Night, has curated the images in this collection—many of them previously unseen—to reveal the true splendor of the sky at night. A specialist guide to night-sky photography will help you capture your own gorgeous images of the heavens. Commentary on the science, astronomy, and photography accompany stunning images organized by theme: Symbols of all nations and religions embraced by one sky of endless beauties UNESCO World Heritage Sites at night The Universe revealed through constellations, sky motions, atmospheric phenomenon, Aurora, and other wonders Images highlighting the beauty of dark skies away from light-polluted urban areas Celestial events, from great comets to spectacular eclipses Astro-tourism destinations, like ancient astronomical monuments and modern observatories
Book Synopsis The Marginal Zone of the Moon by : Chester Burleigh Watts
Download or read book The Marginal Zone of the Moon written by Chester Burleigh Watts and published by . This book was released on 1963 with total page 966 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sharing the Sky written by David H. Levy and published by Springer. This book was released on 2013-11-11 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Analysis of Starlight by : John B. Hearnshaw
Download or read book The Analysis of Starlight written by John B. Hearnshaw and published by Cambridge University Press. This book was released on 2014-03-17 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: A reference for astronomers and historians on astronomical spectroscopy, from the discovery of spectral lines through to the year 2000.
Book Synopsis Explorer of the Universe: A Biography of George Ellery Hale by : Helen Wright
Download or read book Explorer of the Universe: A Biography of George Ellery Hale written by Helen Wright and published by Plunkett Lake Press. This book was released on 2021-03-18 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: “George Ellery Hale [1868-1938] is the subject of this impressive biography... Wright charts Hale’s steady progress towards leadership in the nascent field of astrophysics from his childhood experiments at home in Chicago, through student days at MIT, to his first observatory at Kenwood, all of which demonstrate his passion for unravelling the secrets of nature through the then new medium of spectroscopy. This enthusiasm led him into contact with most of his peers both in America and beyond (Lockyer, Huggins, Pickering, Rowland, and many more), many of whom remained close associates and correspondents for years after. Probably this sense of community made Hale so active in the organization of science, including the formation of the AAS [American Astronomical Society], the IAU [International Astronomical Union], and ICSU [International Council of Scientific Unions]. It also gave him the contacts to give the Astrophysical Journal such a good start in 1895. Perhaps the greatest debt we owe Hale is for his relentless drive towards the creation of ever bigger and better facilities, starting with the still unsurpassed Yerkes refractor, continuing with the solar telescopes on Mt. Wilson and then the 60- and 100-inch telescopes on the same peak, and concluding with the 200-inch [at Mt. Palomar]... Scientifically, Hale’s lifelong affair with the Sun brought him success in the detection of magnetic fields and early studies of surface activity by means of the spectroheliograph he developed, and for which he was duly fêted, and the frustrations of trying to record the corona. But these were early successes and as astropolitics and finance took an ever increasing share of his time, he was able to contribute less than he would have liked. Part of the problem was the illness, with both physical and mental symptoms, which progressively plagued the life of this hyperactive polymath; it is sad to note his decline which prevented him playing a fuller part in the creation of what was to become his memorial... this [biography] is something of a classic on one of astronomy’s giants.” — David Strickland, The Observatory “This important biography is well written and is highly recommended.” — A. E. Covington, Journal of the Royal Astronomical Society of Canada “[An] outstanding biography of this most remarkable man... Helen Wright has done a superb job of tracing Hale’s development not only of new and powerful instruments and of his important discoveries of sunspot magnetic fields and the law of reversing polarities, but also of the embryonic state of American science in the early days of this century... an authoritative biography of one of the most influential men of science this country has produced. The hook will bring to contemporary scientists and historians the story of this unique astronomer whose life is of such special interest to the Caltech community.” — Allan Sandage, Caltech Magazine (formerly Engineering and Science) “Helen Wright gives a detailed account of the life and almost frantic activities of this remarkable scientific leader... In summarizing astrophysical events of the years 1880 to 1950... Wright has provided a useful and fascinating account of scientific development that led to the preeminence of the United States.” — Thornton Page, Science “In writing the story of Hale’s origins, career and bequest to posterity Helen Wright has richly served her fellow astronomers. No one else could have done so well. Her account preserves an admirable balance in presenting Hale not only as a doer but also as a dreamer... Miss Wright’s excellent biography covers the highlights of his career... Miss Wright’s book is highly authentic.” — Harlow Shapley, Scientific American Published under license from Springer Science+Business Media, LLC, part of Springer Nature
Book Synopsis The Perfect Machine by : Ronald Florence
Download or read book The Perfect Machine written by Ronald Florence and published by Harper Collins. This book was released on 2011-08-16 with total page 581 pages. Available in PDF, EPUB and Kindle. Book excerpt: Almost a half-century after is completion, the 200-inch Palomar telescope remains an unparalleled combination of vast scale and microscope detail. As huge as the Pantheon of Rome and as heavy as the Statue of Liberty, this magnificent instrument is so precisely built that its seventeen-foot mirror was hand-polished to a tolerance of 2/1,000,000 of an inch. The telescope's construction drove some to the brink of madness, made others fearful that mortals might glimpse heaven, and transfixed an entire nation. Ronald Florence weaves into his account of the creation of "the perfect machine" a stirring chronicle of the birth of Big Science and a poignant rendering of an America mired in the depression yet reaching for the stars.
Book Synopsis The Harvard College Observatory by : Bessie Zaban Jones
Download or read book The Harvard College Observatory written by Bessie Zaban Jones and published by Belknap Press. This book was released on 2013-10 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its founding in 1839, the Harvard College Observatory has pioneered in the development of modern astronomy. Its first directors early recognized the potential of spectroscopy in revealing the constitution of the stars, and of photography in determining the positions and motions of celestial objects; the library of photographic plates made under their direction provides an invaluable history of the stellar universe for the period. The Observatory also pioneered in using the talents of women, several of whom became noted astronomers, and their monumental classification of stars from spectral records constitutes a fundamental contribution to astronomical knowledge. The authors vividly portray the genesis, growth, and achievements of a major scientific institution and its relations with other observatories. Through the use of photographs and correspondence they also portray the men and women who played essential roles in the development of astronomy in the nineteenth and early twentieth centuries.
Book Synopsis Roger Bacon and the Sciences by : Hackett
Download or read book Roger Bacon and the Sciences written by Hackett and published by BRILL. This book was released on 2021-10-25 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume deals with the philosophy and thought of Roger Bacon. It is an effort to bring Roger Bacon studies up to date. Attention is given to a wide range of topics: Bacon's life and works, Bacon's contribution to the trivium (language studies) and the quadrivium (scientific-mathematical studies), his notion of a science, his moral philosophy, Bacon's contribution to medicine, alchemy, astrology, Bacon's positions in physics and metaphysics, an up dated bibliography of Bacon studies and a review of the state of Bacon Manuscripts. The volume situates Roger Bacon in the context of 13th century philosophy and thought, as well as demonstrating his importance for later thinkers. It is expected that it will be a major new contribution to Medieval and Renaissance Studies.
Book Synopsis Catalog of Infrared Observations. Part 1: Data by : Daniel Y. Gezari
Download or read book Catalog of Infrared Observations. Part 1: Data written by Daniel Y. Gezari and published by . This book was released on 1987 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fletcherism: What It Is; Or, How I Became Young at Sixty by : Horace Fletcher
Download or read book Fletcherism: What It Is; Or, How I Became Young at Sixty written by Horace Fletcher and published by DigiCat. This book was released on 2022-06-02 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Fletcherism: what it is: or, How I became young at sixty" by Horace fletcher is a fascinating book on nutrition and diet. The author here relates briefly the story of his regeneration, of how he rescued himself from the prospect of an early grave, and brought himself to his present splendid physical and mental condition. He tells of the discovery of his principles, which have helped millions of people to live better, happier, and healthier lives. The book is a good fit if you are concerned about health and diet.
