Edwin Powell Hubble1920
Hubble publishes a spectroscopic study of NGC 1499 in Publications of the Astronomical Society of the Pacific, extending his early investigations of emission and reflection nebulae.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble publishes a spectroscopic study of NGC 1499 in Publications of the Astronomical Society of the Pacific, extending his early investigations of emission and reflection nebulae.
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