Galactic hydrogen distribution C018 / 4978

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Galactic hydrogen distribution C018 / 4978

Galactic hydrogen distribution. Diagram showing the distribution of neutral hydrogen in the Milky Way. The darker the area on the diagram, the more dense the hydrogen. This shading shows a number of spiral arms and was the first attempt to map the spiral structure of our galaxy using observations of neutral hydrogen. Image from The Galactic System as a Spiral Nebula by Jan Oort, Frank Kerr and Gart Westerhout, published in Reports on the Progress of Astronomy, No. 4 (1958)

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Media ID 9347821

© ROYAL ASTRONOMICAL SOCIETY/SCIENCE PHOTO LIBRARY

1958 Arms Density Distribution Galactic Galaxy Hydrogen Mapped Mapping Milky Way Plane Spiral Galaxy

EDITORS COMMENTS
This monochrome artwork, titled "Galactic hydrogen distribution C018 / 4978" offers a glimpse into the intricate structure of our Milky Way galaxy. Published in 1958 as part of the groundbreaking study "The Galactic System as a Spiral Nebula" by Jan Oort, Frank Kerr, and Gart Westerhout, this diagram represents the first attempt to map the spiral arms within our galactic home using observations of neutral hydrogen. The image showcases a detailed distribution pattern of neutral hydrogen throughout the Milky Way. The varying shades of darkness on the diagram indicate different densities of hydrogen gas. Darker regions signify higher concentrations, revealing numerous spiral arms that gracefully wind their way through space. This historical illustration holds immense significance in astronomy's progress during the mid-20th century. It highlights not only humanity's relentless curiosity about our place in the cosmos but also our determination to unravel its mysteries. As we gaze upon this remarkable piece, we are reminded of Jan Oort's pioneering efforts alongside his colleagues Frank Kerr and Gart Westerhout in mapping out these celestial structures. Their work paved the way for future advancements in understanding galactic dynamics and has left an indelible mark on astronomical research. With its blend of scientific precision and artistic allure, this print serves as a testament to human ingenuity and reminds us that there is still much more to discover beyond Earth's boundaries.

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