Free Astronomy Books

Free Astronomy Books

This is the updated list of astronomy books available for free download or online reading. These books and papers cover all the areas of astrophysics, cosmology, galactic and extragalactic astronomy, solar and stellar physics, celestial mechanics, planetary science, astrobiology, as well as some popular works. The books are made available free of charge to the reader by their authors or publishers. Here is a categorized directory of astronomy books. This page is updated daily.

  1. Advanced Topics in Cosmology: A Pedagogical Introduction
    T. Padmanabhan | arXiv, Published in 2006, 40 pages
  2. Cosmology for Particle Physicists
    U. A. Yajnik | arXiv, Published in 2008, 63 pages
  3. TASI Lectures: Introduction to Cosmology
    Mark Trodden, Sean M. Carroll | arXiv, Published in 2004, 82 pages
  4. The Hubble Constant
    Neal Jackson | arXiv, Published in 2014, 48 pages
  5. The Cosmological Constant
    Sean M. Carroll | arXiv, Published in 2000, 50 pages
  6. The History of Astrometry
    Michael Perryman | arXiv, Published in 2012, 52 pages
  7. Neutrinos and the Stars
    Georg Raffelt | arXiv, Published in 2012, 83 pages
  8. A Review of the Universe: Structures, Evolutions, Observations, and Theories
    | universe-review.ca, Published in 2009
  9. Stellar Structure and Evolution
    Sergey V. Vorontsov | Queen Mary, University of London, Published in 2010
  10. Pioneers of Science
    Oliver Lodge | Macmillan and co, Published in 1905, 421 pages
  11. Habitable Planets for Man
    Stephen H. Dole | RAND Corporation, Published in 1964, 176 pages
  12. Images of the Solar Upper Atmosphere From SUMER on SOHO
    Uri Feldman, at al. | ESA Publications Division, Published in 2003, 209 pages
  13. Introduction to the Theory of Black Holes
    Gerard 't Hooft | Utrecht University, Published in 2009, 49 pages
  14. Planetary Theory
    Ernest Brown, Clarence Shook | Cambridge University Press, Published in 1933, 323 pages
  15. Introduction to Supersymmetry: Astrophysical and Phenomenological Constraints
    Keith A. Olive | arXiv, Published in 1999, 67 pages
  16. Quantization in Astrophysics, Brownian Motion, and Supersymmetry
    F. Smarandache, V. Christianto | MathTiger, Published in 2007, 516 pages
  17. Cluster Lenses
    Jean-Paul Kneib, Priyamvada Natarajan | arXiv, Published in 2012, 120 pages
  18. The Cosmic Web: Geometric Analysis
    Rien van de Weygaert, Willem Schaap | arXiv, Published in 2007, 129 pages
  19. Cosmic Rays in Galactic and Extragalactic Magnetic Fields
    F. Aharonian, A. Bykov, E. Parizot, V. Ptuskin, A. Watson | arXiv, Published in 2011, 43 pages
  20. The Geology of the Terrestrial Planets
    Michael H. Carr | NASA, Published in 1984, 322 pages
  21. Astronomy for Amateurs
    Camille Flammarion | D. Appleton and Company, Published in 1910
  22. Mechanism of the Heavens
    Mary Somerville | J. Murray, Published in 1831, 710 pages
  23. Cosmology
    James Schombert | University of Oregon, Published in 2008
  24. Hubble 25: A Quarter-Century of Discovery with the Hubble Space Telescope
    Dylan Steele (ed.) | NASA, Published in 2015, 78 pages
  25. Magnetic Fields, Strings and Cosmology
    Massimo Giovannini | arXiv, Published in 2006, 76 pages
  26. Large Scale Structure of the Universe
    Alison L. Coil | arXiv, Published in 2012, 43 pages
  27. Lectures on Astronomy, Astrophysics, and Cosmology
    Luis A. Anchordoqui | arXiv, Published in 2007, 41 pages
  28. Black Holes
    P.K. Townsend | arXiv, Published in 1997, 145 pages
  29. Modified Gravity and Cosmology
    T. Clifton, P.G. Ferreira, A. Padilla, C. Skordis | arXiv, Published in 2012, 312 pages
  30. Guide to Lunar Orbiter Photographs
    Thomas P. Hansen | NASA, Published in 1970, 127 pages
  31. Astrochemistry: The Issue of Molecular Complexity in Astrophysical Environments
    M. De Becker | arXiv, Published in 2013, 62 pages
  32. Introduction to Non-Baryonic Dark Matter
    Paolo Gondolo | arXiv, Published in 2004, 51 pages
  33. Consolidated Lunar Atlas
    Gerald P. Kuiper, et al. | Lunar and Planetary Institute, Published in 1960
  34. Particle Physics Aspects of Modern Cosmology
    Robert H. Brandenberger | arXiv, Published in 1997, 70 pages
  35. General Astronomy
    | Wikibooks, Published in 2009
  36. Views of the Solar System
    Calvin J. Hamilton | , Published in 2008
  37. Cosmological Evolution of Galaxies
    Isaac Shlosman | arXiv, Published in 2012, 88 pages
  38. Lunar Orbiter Photographic Atlas of the Moon
    D.E. Hughes, J.K. Bowker | Lunar and Planetary Institute, Published in 1971
  39. The Fine-Tuning of the Universe for Intelligent Life
    Luke A. Barnes | arXiv, Published in 2011, 76 pages
  40. A Briefer History of Time: From the Big Bang to the Big Mac
    Eric Schulman | St. Martin's Press, Published in 2004, 207 pages
  41. Sky Surveys
    S. G. Djorgovski, A.A. Mahabal, A.J. Drake, M.J. Graham, C. Donalek | arXiv, Published in 2012, 62 pages
  42. Cosmic Journey: A History of Scientific Cosmology
    N. S. Hetherington, W. P. McCray | American Institute of Physics, Published in 2009
  43. Introduction to Millimeter/Sub-Millimeter Astronomy
    T. L. Wilson | arXiv, Published in 2009, 106 pages
  44. Lopsided Spiral Galaxies
    Chanda J. Jog, Francoise Combes | arXiv, Published in 2008, 75 pages
  45. Ekpyrotic and Cyclic Cosmology
    Jean-Luc Lehners | arXiv, Published in 2009, 79 pages
  46. Observational Probes of Cosmic Acceleration
    David H. Weinberg, et al. | arXiv, Published in 2012, 253 pages
  47. Planetary Photometry
    Max Fairbairn | , Published in 2005
  48. Why CMB physics?
    Massimo Giovannini | arXiv, Published in 2007, 179 pages
  49. A Handbook of Descriptive and Practical Astronomy
    George F. Chambers | Oxford At The Clarendon Press, Published in 1889, 756 pages
  50. History of Astronomy
    George Forbes | , Published in 1909
  51. Big Bang Nucleosynthesis and Physics Beyond the Standard Model
    Subir Sarkar | arXiv, Published in 1996, 156 pages
  52. Primordial Magnetogenesis
    Alejandra Kandus, Kerstin E. Kunze, Christos G. Tsagas | arXiv, Published in 2011, 107 pages
  53. Notes on Stellar Astrophysics
    James N. Pierce | Minnesota State University, Published in 2013, 299 pages
  54. Man's Place in the Universe
    Alfred R. Wallace | Chapman and Hall, Published in 1904, 330 pages
  55. Techniques of Radio Astronomy
    T. L. Wilson | arXiv, Published in 2011, 47 pages
  56. Star-Gazer's Hand-Book
    Henry William Elson | Sturgis & Walton, Published in 1910, 72 pages
  57. When Biospheres Collide: A History of NASA's Planetary Protection Programs
    Michael Meltzer | NASA, Published in 2011, 542 pages
  58. Mysteries of the Sun
    Ginger Butcher | NASA, Published in 2011, 20 pages
  59. Protoplanetary Disks and Their Evolution
    Jonathan P. Williams, Lucas A. Cieza | arXiv, Published in 2011, 65 pages
  60. Observations of the High Redshift Universe
    Richard S. Ellis | arXiv, Published in 2007, 115 pages
  61. A Photographic Atlas of Rock Breakdown Features in Geomorphic Environments
    Mary Bourke, Heather Viles | Planetary Science Institute, Published in 2007, 88 pages
  62. Primer Of Celestial Navigation
    John Favill | Cornell Maritime Press, Published in 1944, 300 pages
  63. Handbook of Space Astronomy and Astrophysics
    Martin V. Zombeck | Cambridge University Press, Published in 2006, 780 pages
  64. Lecture notes on the formation and early evolution of planetary systems
    Philip J. Armitage | arXiv, Published in 2010, 63 pages
  65. Superstring Cosmology
    James E. Lidsey, David Wands, E. J. Copeland | arXiv, Published in 2000, 161 pages
  66. String Cosmology
    James M. Cline | arXiv, Published in 2007, 47 pages
  67. Cosmology: Mankind's Grand Investigation
    Greg Bothun | Harcourt Brace College Publishers, Published in 1999, 129 pages
  68. An Introduction into the Theory of Cosmological Structure Formation
    Christian Knobel | arXiv, Published in 2012, 102 pages
  69. Astronomy of To-day
    Cecil Goodrich Julius Dolmage | Seeley and co., Published in 1910
  70. An Introduction to Galactic Chemical Evolution
    Nikos Prantzos | arXiv, Published in 2007, 46 pages
  71. Massive Stars and their Supernovae
    F. Thielemann, R. Hirschi, M. Liebendorfer, R. Diehl | arXiv, Published in 2010, 81 pages
  72. An Introduction to Astronomy
    Forest Ray Moulton | The MacMillan Company, Published in 1916, 577 pages
  73. The Astrobiology Primer: An Outline of General Knowledge
    Lucas J. Mix, at al. | arXiv, Published in 2006, 79 pages
  74. Evolution of the Solar System
    Hannes Alfven, Gustaf Arrhenius | NASA, Published in 1976
  75. Introduction to Cosmology
    A. D. Dolgov | arXiv, Published in 2009, 58 pages
  76. A Text-book of Astronomy
    George C. Comstock | D. Appleton and company, Published in 1901, 391 pages
  77. Particle Physics and Inflationary Cosmology
    Andrei Linde | arXiv, Published in 2005, 270 pages
  78. A Primer for Black Hole Quantum Physics
    R. Brout, S. Massar, R. Parentani, P. Spindel | arXiv, Published in 2007, 178 pages
  79. Everything You Always Wanted To Know About The Cosmological Constant Problem
    Jerome Martin | arXiv, Published in 2012, 89 pages
  80. From Disks to Planets
    Andrew N. Youdin, Scott J. Kenyon | arXiv, Published in 2012, 70 pages
  81. Cosmic Structure, Averaging and Dark Energy
    David L. Wiltshire | arXiv, Published in 2013, 55 pages
  82. Caldwell Catalogue
    | Wikipedia, Published in 2014
  83. Dark Energy: Observational Evidence and Theoretical Models
    B. Novosyadlyj, V. Pelykh, Yu. Shtanov, A. Zhuk | Akademperiodyka, Published in 2013, 380 pages
  84. Astronomy
    Andrew Fraknoi, David Morrison, Sidney C. Wolff | Unglue.it, Published in 2016, 1200 pages
  85. To a Rocky Moon: A Geologist's History of Lunar Exploration
    Don E. Wilhelms | University of Arizona Press, Published in 1993, 524 pages
  86. Observatories in Space
    Catherine Turon | arXiv, Published in 2011, 50 pages
  87. Gravitational Waves: Sources, Detectors and Searches
    Keith Riles | arXiv, Published in 2012, 79 pages
  88. The Astronomy of the Bible
    E. Walter Maunder | Richard Clay & Sons, Published in 1908
  89. Astronomy with an Opera-glass
    Garrett Putman Serviss | D. Appleton & co., Published in 1890, 154 pages
  90. Astronomy Notes
    Nick Strobel | astronomynotes.com, Published in 2010
  91. Inflation and String Theory
    Daniel Baumann, Liam McAllister | arXiv, Published in 2014, 349 pages
  92. Elementary Astronomy
    James N. Pierce | , Published in 2013, 134 pages
  93. Cosmic Microwave Background Anisotropies up to Second Order
    Nicola Bartolo, Sabino Matarrese, Antonio Riotto | arXiv, Published in 2007, 53 pages
  94. Inflation
    Marieke Postma | NIKHEF, Published in 2009, 53 pages
  95. An Exposition on Inflationary Cosmology
    Scott Watson | arXiv, Published in 2000, 93 pages
  96. An Introduction to Cosmic Rays and Gamma-Ray Bursts
    A. De Rujula | arXiv, Published in 2007, 37 pages
  97. Textbook on Practical Astronomy
    George Leonard Hosmer | Wiley, Published in 1910, 252 pages
  98. Through the Telescope
    James Baikie | Adam and Charles Black, Published in 1906, 303 pages
  99. The Star Splitters: The High Energy Astronomy Observatories
    Wallace H. Tucker | NASA History Office, Published in 1984, 182 pages
  100. Hours With A Three-Inch Telescope
    William Noble | Longmans, Green & Co., Published in 1887, 159 pages
  101. Introductory Lectures on Quantum Cosmology
    J. J. Halliwell | arXiv, Published in 1990, 107 pages
  102. Astronomical Discovery
    Herbert Hall Turner | E. Arnold, Published in 1904, 225 pages
  103. Hubble Space Telescope: Discoveries
    | NASA, Published in 2012, 128 pages
  104. Short History of Astronomy
    Arthur Berry | John Murray, Published in 1898, 439 pages
  105. An Introduction to the Theory of Rotating Relativistic Stars
    Eric Gourgoulhon | arXiv, Published in 2010, 88 pages
  106. Stellar Atmospheres
    J. B. Tatum | , Published in 2006
  107. To See the Unseen: A History of Planetary Radar Astronomy
    Andrew J. Butrica | NASA History Division, Published in 1996, 301 pages
  108. Celestial Navigation, Elementary Astronomy, Piloting
    Arturo Chiesa, Raffaele Chiesa | Sky and Sea Software, Published in 2010
  109. Astrodynamics: A Compendium of Orbitology
    | Wikipedia, Published in 2013, 334 pages
  110. Multi-messenger Astronomy and Dark Matter
    Las Bergstrom | arXiv, Published in 2012, 105 pages
  111. Atomic and Molecular Processes in Astronomy and Planetary Science
    Geoffrey A. Blake | California Institute of Technology, Published in 2004
  112. The Birth and Death of Stars
    James Schombert | University of Oregon, Published in 2008
  113. Guidebook to the Geology of Barringer Meteorite Crater, Arizona
    David A. Kring | Lunar and Planetary Institute, Published in 2007, 154 pages
  114. Are We Alone?
    Gregg Easterbrook | The Atlantic Monthly, Published in 1988
  115. A Guide To The Constellations
    Samuel G. Barton | McGraw-Hill, Published in 1928, 96 pages
  116. Stellar Superfluids
    Dany Page, et al. | arXiv, Published in 2013, 88 pages
  117. Elements of Astrophysics
    Nick Kaiser | University of Hawaii, Published in 2002, 435 pages
  118. A practical guide to Basic Statistical Techniques for Data Analysis in Cosmology
    Licia Verde | arXiv, Published in 2008, 52 pages
  119. The Telescope
    Louis Bell | McGraw-Hill, Published in 1922, 294 pages
  120. An Introduction to Quantum Cosmology
    D.L. Wiltshire | arXiv, Published in 2003, 60 pages
  121. The Galactic Habitable Zone I. Galactic Chemical Evolution
    G. Gonzalez, D. Brownlee, P. Ward | arXiv, Published in 2001, 57 pages
  122. Ultrahigh Energy Cosmic Rays: Facts, Myths, and Legends
    Luis Alfredo Anchordoqui | arXiv, Published in 2011, 92 pages
  123. Recent Developments in Gravitational Collapse and Spacetime Singularities
    Pankaj S. Joshi, Daniele Malafarina | arXiv, Published in 2012, 89 pages
  124. Pioneer Saturn Encounter
    | NASA, Published in 1979, 45 pages
  125. Moon Trip: A Personal Account of the Apollo Program and its Science
    Elbert A. King | Lunar and Planetary Institute, Published in 1989, 162 pages
  126. Galaxy systems in the optical and infrared
    A. Biviano | arXiv, Published in 2008, 60 pages
  127. Origin of the Moon
    W. K. Hartmann, R. J. Phillips, G. J. Taylor | Lunar and Planetary Institute, Published in 1986, 781 pages
  128. Primordial Nucleosynthesis: from precision cosmology to fundamental physics
    F. Iocco, G. Mangano, G. Miele, O. Pisanti, P.D. Serpico | arXiv, Published in 2009, 148 pages
  129. Observing the Sky from 40N
    Roberto Mura | Wikibooks, Published in 2010, 86 pages
  130. The Beginning and the End: The Meaning of Life in a Cosmological Perspective
    Clement Vidal | arXiv, Published in 2013, 356 pages
  131. From Cosmic Birth to Living Earths: The Future of UVOIR Space Astronomy
    Julianne Dalcanton, et al. | arXiv, Published in 2015, 176 pages
  132. The Complete Idiot's Guide to The Sun
    Jay M. Pasachoff | Alpha, Published in 2003, 350 pages
  133. The Formation and Evolution of the Solar System
    James Schombert | University of Oregon, Published in 2007
  134. The Practical Astronomer
    Thomas Dick | Seeley, Burnside, and Seeley, Published in 1845, 588 pages
  135. The Universe in a Helium Droplet
    Grigory E. Volovik | Oxford University Press, Published in 2003, 532 pages
  136. The Fundamentals of Stellar Astrophysics
    George W. Collins, II | W H Freeman & Co, Published in 2003, 494 pages
  137. Protostars and Planets IV
    V. Mannings, A. Boss, S. Russell | University of Arizona Press, Published in 2000, 1422 pages
  138. Supernova Remnants: The X-ray Perspective
    Jacco Vink | arXiv, Published in 2011, 78 pages
  139. Solar Neutrinos
    V. Antonelli, L. Miramonti, C. Pena-Garay, A. Serenelli | arXiv, Published in 2012, 51 pages
  140. From Chaos to Consciousness: A Brief History of the Universe
    Mike Corwin | Bookboon, Published in 2015, 166 pages
  141. Dynamics of the Universe in Problems
    Yu. L. Bolotin, et al. | UniverseInProblems.com, Published in 2013, 113 pages
  142. Celestial Mechanics: Notes and Work
    J.D. Mireles James | Rutgers University, Published in 2007, 128 pages
  143. Chondrules and their Origins
    Elbert A. King | The Lunar and Planetary Institute, Published in 1983, 377 pages
  144. An Introduction to Celestial Mechanics
    Forest Ray Moulton | The MacMillan Company, Published in 1914, 437 pages
  145. The Planet Mars: A History of Observation and Discovery
    William Sheehan | University of Arizona Press, Published in 1996, 270 pages
  146. Oulu Space Physics Textbook
    Reijo Rasinkangas | University of Oulu, Published in 2008
  147. Space Nomads
    Leota Jean LaPaz, Lincoln LaPaz | Holiday House, Published in 1961, 199 pages
  148. Mercury
    F. Vilas, C. Chapman, M. Matthews | University of Arizona Press, Published in 1989, 794 pages
  149. The Shape of the Universe
    Gerd Pommerenke | viXra, Published in 2013, 321 pages
  150. An introductory treatise on the lunar theory
    Ernest W Brown | Cambridge University Press, Published in 1896, 312 pages
  151. Planetary Rings
    Matthew S. Tiscareno | arXiv, Published in 2011, 82 pages
  152. Chemistry in Protoplanetary Disks
    Thomas Henning, Dmitry Semenov | arXiv, Published in 2013, 84 pages
  153. An Overview of the Solar System
    | Wikipedia, Published in 2013
  154. A New Astronomy
    David Peck Todd | American Book Company, Published in 1906, 437 pages
  155. Plasma Physics of Extreme Astrophysical Environments
    Dmitri A. Uzdensky, Shane Rightley | arXiv, Published in 2014, 56 pages
  156. Lectures on Black Holes, Topological Strings and Quantum Attractors
    Boris Pioline | arXiv, Published in 2007, 103 pages
  157. Gamma-Ray Bursts: Progress, Problems and Prospects
    Bing Zhang, Peter Meszaros | arXiv, Published in 2008, 87 pages
  158. Practical Astronomy
    P. S. Michie, F. S. Harlow | John Wiley & Sons, Published in 1893, 246 pages
  159. Introduction to Physical Astronomy
    Kenneth R. Koehler | University of Cincinnati, Published in 2010
  160. Observing the Sky from 30S
    Roberto Mura | Wikibooks, Published in 2010, 86 pages
  161. Gamma-Ray Bursts
    | Wikipedia, Published in 2014
  162. Cosmology: The Study of the Universe
    | NASA, Published in 2009, 38 pages
  163. Celestial Mechanics
    J. B. Tatum | , Published in 2008
  164. Mag 7 Star Atlas Project
    Andrew L. Johnson | , Published in 2007, 21 pages
  165. Frequently Asked Questions about Calendars
    Claus Tøndering | , Published in 2008, 65 pages
  166. Photographs of Nebulae and Clusters
    James Edward Keeler | University of California Publications, Published in 1908
  167. Resources of Near-Earth Space
    J. S. Lewis, M. S. Matthews | University of Arizona Press, Published in 1993, 977 pages
  168. Traces of Catastrophe
    Bevan M French | Lunar and Planetary Institute, Published in 1998, 120 pages
  169. Solar System
    | Wikipedia, Published in 2012, 646 pages
  170. Introduction to Cosmology
    David H Lyth | arXiv, Published in 1993, 53 pages
  171. The Birth And Death Of The Sun
    George Gamow | Dover Publications, Published in 1940, 256 pages
  172. Practical Astronomy
    George L. Hosmer | John Wiley and Sons Inc., Published in 1925, 314 pages
  173. Spherical Astronomy
    F. Brünnow | Van Nostrand, Published in 1865, 559 pages
  174. The Story of Eclipses
    George F. Chambers | S. S. McClure Co., Published in 1909, 208 pages
  175. A Simple Guide to Backyard Astronomy
    Carol Beigel | , Published in 2008, 61 pages
  176. Cosmos and Culture: Cultural Evolution in a Cosmic Context
    Steven J. Dick, Mark L. Lupisella | NASA, Published in 2010, 612 pages
  177. Radiative Processes in High Energy Astrophysics
    Gabriele Ghisellini | arXiv, Published in 2012, 157 pages
  178. Introduction to Early Universe Cosmology
    Robert H. Brandenberger | arXiv, Published in 2011, 70 pages
  179. First Light
    Abraham Loeb | arXiv, Published in 2006, 157 pages
  180. Archaeology, Anthropology, and Interstellar Communication
    Douglas A. Vakoch | NASA, Published in 2014, 330 pages
  181. Galaxies and the Expanding Universe
    James Schombert | University of Oregon, Published in 2008
  182. Basaltic Volcanism on the Terrestrial Planets
    | Pergamon Press, Published in 1981, 1286 pages
  183. Cosmic Rays and the Search for a Lorentz Invariance Violation
    Wolfgang Bietenholz | arXiv, Published in 2008, 81 pages
  184. Understanding Galaxy Formation and Evolution
    V. Avila-Reese | arXiv, Published in 2006, 50 pages
  185. Gravitational Wave Detection by Interferometry
    Matthew Pitkin, Stuart Reid, Sheila Rowan, Jim Hough | arXiv, Published in 2011, 80 pages
  186. Inflationary Cosmology and Structure Formation
    J. A. Peacock | arXiv, Published in 1996, 77 pages
  187. The Virial Theorem in Stellar Astrophysics
    George W. Collins, II | Pachart Pub. House, Published in 1978, 135 pages
  188. High Performance Computing and Numerical Modelling
    Volker Springel | arXiv, Published in 2014, 108 pages
  189. The Foundations of Celestial Mechanics
    George W. Collins, II | Pachart Pub House, Published in 2004, 145 pages
  190. Advances in Global and Local Helioseismology: an Introductory Review
    Alexander G. Kosovichev | arXiv, Published in 2011, 86 pages
  191. The First Stars
    Simon C. O. Glover | arXiv, Published in 2012, 72 pages
  192. A Practical Introduction to Numerical Hydrodynamics
    Garrelt Mellema | Leiden University, Published in 2003
  193. Gravitational Wave Experiments and Early Universe Cosmology
    Michele Maggiore | arXiv, Published in 2000, 100 pages
  194. High Energy Astrophysics
    Jonathan Katz | The Benjamin/Cummings Publishing, Published in 1986, 338 pages
  195. Vision and Voyages for Planetary Science in the Decade 2013-2022
    | National Academy of Sciences, Published in 2011, 410 pages
  196. Mars Science Laboratory
    | Wikipedia, Published in 2014
  197. Supernovae
    | Wikipedia, Published in 2014
  198. Exoplanet Observing for Amateurs
    Bruce L. Gary | Reductionist Publications, Published in 2007, 170 pages
  199. Voyager 1 and 2: Atlas of Six Saturnian Satellites
    Raymond M. Batson | NASA, Published in 1984, 175 pages
  200. Astronomical Image and Data Analysis
    J.-L. Starck, F. Murtagh | Springer, Published in 2006, 335 pages
  201. Advances in Modern Cosmology
    Adnan Ghribi | InTech, Published in 2011, 198 pages
  202. An Introduction to Celestial Mechanics
    Richard Fitzpatrick | The University of Texas at Austin, Published in 2011, 216 pages
  203. Recreations in Astronomy
    Henry White Warren | Project Gutenberg,
  204. Introduction to relativistic astrophysics and cosmology through Maple
    V. L. Kalashnikov | arXiv, Published in 2001, 124 pages
  205. Atlas of Peculiar Galaxies
    Halton C. Arp | California Institute of Technology, Published in 1966, 190 pages
  206. Dwarf-Galaxy Cosmology
    Regina Schulte-Ladbeck, at al. | Hindawi Publishing, Published in 2010, 238 pages
  207. Trans-Neptunian Objects: An Overview
    | Wikipedia, Published in 2014
  208. An Expanded View of the Universe
    | European Southern Observatory, Published in 2011, 54 pages
  209. Supernova Cosmology: Legacy and Future
    Ariel Goobar, Bruno Leibundgut | arXiv, Published in 2011, 62 pages
  210. The Beginning and Evolution of the Universe
    Bharat Ratra, Michael S. Vogeley | arXiv, Published in 2008, 69 pages
  211. Practical Astronomy for Engineers
    Frederick Hanley Seares | Stephens, Published in 1909, 160 pages
  212. Lunar Stratigraphy and Sedimentology
    John Lindsay | Elsevier, Published in 1976, 311 pages
  213. Black-Hole Phenomenology
    Neven Bilic | arXiv, Published in 2006, 58 pages
  214. Planetary Science: A Lunar Perspective
    Stuart Ross Taylor | Lunar and Planetary Institute, Published in 1982
  215. Cosmology Primer
    Sean Carroll | preposterousuniverse.com, Published in 2012, 120 pages
  216. Radiative Gas Dynamics
    David Weinberg | Ohio State University, Published in 2007
  217. The world according to the Hubble Space Telescope
    Mario Livio | arXiv.org, Published in 2008, 112 pages
  218. The Solar Magnetic Field
    Sami Solanki, Bernd Inhester, Manfred Schussler | arXiv, Published in 2010, 83 pages
  219. General Astronomy
    Harold Spencer Jones | Edward Arnold and Company, Published in 1924, 392 pages
  220. Encyclopedia of Astrophysics
    Søren Bertil F. Dorch | Scholarpedia, Published in 2009
  221. Great Astronomers
    Robert S. Ball | Isbister, Published in 1895, 392 pages
  222. Dense Matter in Compact Stars
    Andreas Schmitt | arXiv, Published in 2010, 146 pages
  223. Curiosities of the Sky
    Garrett Putman Serviss | Harper & Brothers, Published in 1909, 300 pages
  224. Elementary Mathematical Astronomy
    C. Barlow, G. Bryan | University Correspondence College Press, Published in 1893, 442 pages
  225. The Elements of Theoretical and Descriptive Astronomy
    Charles J. White | J. Wiley, Published in 1909, 322 pages
  226. Lectures on Inflation and Cosmological Perturbations
    David Langlois | arXiv, Published in 2010, 56 pages