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The American Astronomical Society is an American society of professional astronomers and other interested individuals, headquartered in Washington, DC. The primary objective of the AAS is to promote the advancement of astronomy and closely related branches of science, while the secondary purpose includes enhancing astronomy education and providing a political voice for its members through lobbying and grassroots activities. Its current mission is to enhance and share humanity's scientific understanding of the universe as a diverse and inclusive astronomical community.
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Linda Siobhan Sparke is a British astronomer known for her research on the structure and dynamics of galaxies. She is a professor emerita of astronomy at the University of Wisconsin–Madison, and Explorers Program Scientist in the NASA Astrophysics Division.
Barbara Sue Ryden is an American astrophysicist who is a Professor of Astronomy at Ohio State University. Her research considers the formation, shape and structure of galaxies. She was elected a fellow of the American Association for the Advancement of Science in 2016.
NGC 4393 is a spiral galaxy about 46 million light-years away in the constellation Coma Berenices. It was discovered by astronomer William Herschel on April 11, 1785. It is a member of the NGC 4274 Group, which is part of the Coma I Group or Cloud.
References
- ↑ biographical information from American Men and Women of Science, Thomson Gale 2004
- 1 2 "28364 Bruceelmegreen". Minor Planet Center. Retrieved 18 October 2021.
- ↑ Elmegreen CV, Instituto de Astrofisica de Canarias - IAC - General Information
- ↑ Elmegreen, Debra Meloy; Elmegreen, Bruce G. (January 20, 2014). "The Onset of Spiral Structure in the Universe". The Astrophysical Journal. 781 (11): 11. arXiv: 1312.2215 . Bibcode:2014ApJ...781...11E. doi:10.1088/0004-637X/781/1/11.
- ↑ "AAS Fellows". American Astronomical Society – AAS. Retrieved 27 September 2020.
- ↑ "ASP Bruce Medal" . Retrieved 30 April 2023.
- ↑ "WGSBN Bulletin Archive". Working Group for Small Bodies Nomenclature. 15 October 2021. Retrieved 17 October 2021. (Bulletin #10)
