Mostrando 621 - 640 Resultados de 1,563 Para Buscar '"astronomer"', tiempo de consulta: 0.10s Limitar resultados
  1. 621
    “…Knotted magnetic field lines give rise to powerful eruptions and form the intricate sunspots and arching prominences that make our nearest star one of the most exciting, yet challenging, astronomical objects to sketch. Facilitated by the availability of affordable dedicated solar telescopes and filters, the Sun has become an increasingly popular target amongst astronomical sketchers. …”
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  2. 622
    Publicado 2007
    “…"Astronomers were astonished to discover in 1998 that the expansion of the universe is happening at an ever-increasing rate."…”
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  3. 623
    por Consolmagno, Guy, Davis, Dan M
    Publicado 2000
    “…Fascinating guide for beginning amateur astronomers using small telescopes in the northern and southern hemisphere.…”
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  4. 624
    por Dumont, Etienne
    Publicado 2004
    “…The exhibition devotes itself to the youth of the future Astronom. Two Genevese are included in the course (½ page)…”
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  5. 625
    “…BACKGROUND: We report the results of an undergraduate course in astrophotography designed to engage non-STEM majors in the natural sciences to train future amateur astronomers and citizen scientists. Over 200,000 students enroll in introductory astronomy elective classes every year in the US alone, which will possibly be their only encounter with a natural science. …”
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  6. 626
    por Gray, Malcolm
    Publicado 2012
    “…Written for postgraduates and researchers, this is an up-to-date survey of astrophysical maser sources and their use as astronomical tools.…”
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  7. 627
    “…A comprehensive review of state-of-the-art techniques, models and research methods in modern astronomical polarimetry.…”
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  8. 628
    por Cardona III, Charles A
    Publicado 2010
    “…Star clusters are some of the most beautiful objects in the night sky and are prime targets for observational astronomers as well as astrophotographers. Using some of the newer technologies and larger and more powerful telescopes available today to amateur astronomers, many more of these dazzling groupings of stars can now be located and viewed throughout the year. …”
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  9. 629
    por Orchiston, Wayne
    Publicado 2005
    “…This book will appeal to professional and amateur astronomers, and is a tribute to one of the world’s most remarkable astronomers.…”
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  10. 630
    por Jenkins, Jamey L
    Publicado 2013
    “…A comprehensive solar observing guide for use at the telescope by amateur astronomers at all three levels: beginning, intermediate, and advanced. …”
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  11. 631
    Publicado 2003
    “…"Astronomers have discovered a star in the constellation Cassiopeia that will explode in the near future" (1/2 page).…”
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  12. 632
    por Harrington, Philip S
    Publicado 2010
    “…Unique observing guide for novice astronomers and advanced veterans alike, suitable for the naked eye, binoculars, and backyard telescopes.…”
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  13. 633
    por Moore, Patrick, Rees, Robin
    Publicado 2011
    “…Full of data about the Solar System, our Galaxy and the Universe, this is a one-stop reference for all astronomers.…”
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  14. 634
    por Dick, Steven J
    Publicado 2013
    “…This book shows that astronomical discovery is a complex and ongoing process comprising various stages of research, interpretation and understanding.…”
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  15. 635
    por Percy, John R
    Publicado 2007
    “…A concise introduction and overview of variable stars, for undergraduate students and experienced amateur astronomers, first published in 2007.…”
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  16. 636
    por James, Nick, North, Gerald
    Publicado 2003
    “…Since comet Shoemaker-Levy collided with the planet Jupiter with stupendous force in 1994 there has been an upsurge of amateur interest in comets Most comets are first discovered by amateur astronomers because there are so many amateurs looking for them, and techniques and instruments have improved dramatically in the past few years After a short but detailed introduction to the comets themselves Nick James and Gerald North describe comet hunting, photographing and imaging comets, and digital image processing The use of computers for orbital calculations and even helping to discover new comets is given a full chapter, as are advanced techniques including comet photometry and spectroscopy This comprehensive book has an accompanying CD-ROM and is at once a "primer" for comet hunters and a reference text for more advanced amateur astronomers…”
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  17. 637
    por Mathew, Arun, Nandy, Malay K.
    Publicado 2021
    “…The existence of Chandrasekhar’s limit has played various decisive roles in astronomical observations for many decades. However, various recent theoretical investigations suggest that gravitational collapse of white dwarfs is withheld for arbitrarily high masses beyond Chandrasekhar’s limit if the equation of state incorporates the effect of quantum gravity via the generalized uncertainty principle. …”
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    Online Artículo Texto
  18. 638
    por Harwit, Martin
    Publicado 2006
    “…With this approach, individual astronomical objects (white dwarfs, supernovae, comets, quasars) are mentioned wherever physical processes relevant to them are discussed, rather than in specifically dedicated sections. …”
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  19. 639
    por Jones, Barrie W
    Publicado 2010
    “…Richly illustrated and up-to-date, this book is a timely account of Pluto for general readers, amateur astronomers and students alike.…”
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  20. 640
    por Thomas, John H, Weiss, Nigel O
    Publicado 2008
    “…A comprehensive account of sunspots and starspots for graduate students, astronomers, geophysicists, space physicists and experts in solar and stellar physics.…”
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