It takes the average reader 5 hours and 25 minutes to read Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn by Pieter C. van der Kruit
Assuming a reading speed of 250 words per minute. Learn more
This non-technical biography of Jacobus Cornelius Kapteyn (1851-1922) presents to the general reader the scientific life of the astronomer who pioneered the studies of the structure of the Milky Way Galaxy. In telling Kapteyn’s story the author weaves in astronomy basics and uses modern astronomical images to show the developments of astronomical research from Kapteyn’s times to the present. In particular the study of the distribution of stars in space has now culminated with spectacular new insights coming from the astrometric satellite GAIA, which is receiving much public attention today. The biography shows how Kapteyn’s ideas influenced prominent astronomers worldwide. He is prominent as designer of the Kapteyn Universe, the alternative to the large system found by Harlow Shapley. He is the discoverer of Kapteyn’s Star, still the second fastest moving star in the sky, which is now one of the nearest stars with a planet in the habitable zone. This fascinating hybrid of astronomy history and popular astronomy tells the story of the astronomy professor without an observatory who founded the first astronomical laboratory specializing in measuring photographic plates exposed elsewhere. Kapteyn took astronomy out of cataloguing stars to measuring distances and velocities in order to study their spatial distribution, systematic motions (Kapteyn’s Star Streams) and the equilibrium between their gravity and motions. His legacy includes, in addition to the first application of Galactic structure and dynamics, Jan Hendrik Oort, the famous astronomer from Leiden, who as a student was so impressed by Kapteyn’s lectures that he decided to become an astronomer.
Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn by Pieter C. van der Kruit is 317 pages long, and a total of 81,469 words.
This makes it 107% the length of the average book. It also has 100% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 7 hours and 25 minutes to read Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn aloud.
Pioneer of Galactic Astronomy: A Biography of Jacobus C. Kapteyn is suitable for students ages 12 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
When deciding what to show young students always use your best judgement and consult a professional.
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