Smithsonian Astrophysical Observatory

Coordinates: 42°22′53″N 71°07′42″W / 42.38146°N 71.12837°W / 42.38146; -71.12837
Source: Wikipedia, the free encyclopedia.
Smithsonian Astrophysical Observatory
Headquarters60 Garden Street, Cambridge, Massachusetts, United States
Director
Lisa Kewley
Staff
850+
Websitewww.cfa.harvard.edu

The Smithsonian Astrophysical Observatory (SAO) is a research institute of the

theory and instrumentation, using observations at wavelengths from the highest energy gamma rays to the radio, along with gravitational waves.  Established in Washington, D.C., in 1890, the SAO moved its headquarters in 1955 to Cambridge, Massachusetts, where its research is a collaboration with the Harvard College Observatory (HCO) and the Harvard University Department of Astronomy. In 1973, the Smithsonian and Harvard formalized the collaboration as the Center for Astrophysics | Harvard & Smithsonian
(CfA) under a single Director.

History

Secretary of the Smithsonian, founded the Smithsonian Astrophysical Observatory on the south yard of the Smithsonian Castle (on the U.S. National Mall) on March 1,1890. The Astrophysical Observatory's initial, primary purpose was to "record the amount and character of the Sun's heat[1]". Charles Greeley Abbot was named SAO's first director, and the observatory operated solar telescopes to take daily measurements of the Sun's intensity in different regions of the optical electromagnetic spectrum. In doing so, the observatory enabled Abbot to make critical refinements to the Solar constant, as well as to serendipitously discover Solar variability. It is likely that SAO's early history as a solar observatory was part of the inspiration behind the Smithsonian's "sunburst" logo, designed in 1965 by Crimilda Pontes.[2]

In 1955, the scientific headquarters of SAO moved from

With the creation of

to astrophysical problems.

SAO Director Years as Director
Samuel Pierpont Langley 1890–1906
Charles Greeley Abbot 1906-1942
Loyal Blaine Aldrich 1942-1955
Fred Lawrence Whipple 1955-1973
George B. Field 1973-1982
Irwin I. Shapiro 1982-2004
Charles R. Alcock 2004-2022
Lisa Kewley 2022-present


Remote stations

SAO has operated a number of remote stations over the years.[5][6]

Station Type Latitude Longitude El. (m) Opened Closed Coordinates
Mount Wilson, California Solar 34º13'N 118º56'W 1737 1908 1920 34°13′N 118°56′W / 34.217°N 118.933°W / 34.217; -118.933
Hump Mountain, North Carolina Solar 36º8'N 82º0'W 1500 1917 1918 36°8′N 82°00′W / 36.133°N 82.000°W / 36.133; -82.000
Calama, Chile Solar 22º28'S 68º56'W 2250 1918 1920 22°28′S 68°56′W / 22.467°S 68.933°W / -22.467; -68.933
Mount Montezuma, Chile Solar 22º40'S 68º56'W 2711 1920 ? 22°40′S 68°56′W / 22.667°S 68.933°W / -22.667; -68.933
Mount Harquahala, Arizona Solar 33º48'N 113º20'W 1721 1920 1925 33°48′N 113°20′W / 33.800°N 113.333°W / 33.800; -113.333
Table Mountain, California Solar 34º22'N 117º41'W 2286 1925 1962 34°22′N 117°41′W / 34.367°N 117.683°W / 34.367; -117.683
Mount Brukkaros, Namibia Solar 25º52'S 17º48'E 1586 1926 1931 25°52′S 17°48′E / 25.867°S 17.800°E / -25.867; 17.800
Mount Saint Catherine, Egypt Solar 28º31'N 33º56'E 2591 1934 1937 28°31′N 33°56′E / 28.517°N 33.933°E / 28.517; 33.933
Burro Mountain, New Mexico Solar 32º40'N 108º33'W 2440 1938 1946 32°40′N 108°33′W / 32.667°N 108.550°W / 32.667; -108.550
Organ Pass, New Mexico Space Track 32º25'N 106º33'W 32°25′N 106°33′W / 32.417°N 106.550°W / 32.417; -106.550
Parnamirim, Brazil Space Track 05º55'S 35º09'W 390 1966 1976 05°55′S 35°09′W / 5.917°S 35.150°W / -5.917; -35.150
Olifantsfontein, South Africa Space Track 25º58'S 28º15'E 25°58′S 28°15′E / 25.967°S 28.250°E / -25.967; 28.250
Woomera, Australia
Space Track 31º06'S 136º46'E 31°06′S 136°46′E / 31.100°S 136.767°E / -31.100; 136.767
Cadiz, Spain
Space Track 36º28'N 353º48'E 36°28′N 6°12′W / 36.467°N 6.200°W / 36.467; -6.200
Shiraz, Iran
Space Track 29º38'N 52º31'E 29°38′N 52°31′E / 29.633°N 52.517°E / 29.633; 52.517
Curaçao, Netherlands West Indies Space Track 12º05'N 291º10'E 12°05′N 68°50′W / 12.083°N 68.833°W / 12.083; -68.833
Jupiter, Florida Space Track 27º01'N 279º53'E 27°01′N 80°07′W / 27.017°N 80.117°W / 27.017; -80.117
Haleakala, Hawaii
Space Track 20º43'N 203º45'E 20°43′N 156°15′W / 20.717°N 156.250°W / 20.717; -156.250
Villa Dolores, Argentina Space Track 31º57'S 294º54'E 31°57′S 65°06′W / 31.950°S 65.100°W / -31.950; -65.100
Mitaka, Japan Space Track
Nanital, India Space Track 29°23'N 79°27'E 2084 2004 29°23′N 79°27′E / 29.383°N 79.450°E / 29.383; 79.450
Arequipa, Peru Solar,
Space Track
Oak Ridge Observatory

SAO Today

The current director of the SAO is Lisa Kewley (2022 to present). There are currently about 170 research staff working at the SAO, including affiliated research staff. In addition, the SAO has about 120 postdoctoral researchers/fellows working in five competitive, associated fellowship programs: CfA, Clay, SMA, ITAMP, and Leon Van Speybroeck, or in support of a contract or grant. (Additional postdocs do research via Harvard fellowship programs or national/international fellowship awards); about 40% of the postdoctoral community are women and about 12% are from minority populations. SAO scientists can supervise Harvard Ph.D students, and in addition they typically supervise about 30 graduate students from other institutions who are pursuing Ph.D. theses at the SAO. About thirty undergraduate students intern at the SAO each year. All together there are about 950 staff (including administrative and management department employees) working at the Center.

M87*), captured by the Event Horizon Telescope. SAO plays a central role in the project.[7]

Directors

Associates

See also

References

  1. ^ a b DeVorkin, David H. (2018). Fred Whipple's Empire: The Smithsonian Astrophysical Observatory, 1955-1973. Smithsonian Institution Scholarly Press.
  2. ^ Anonymous (2020-03-24). "Crimilda Pontes: The Original Designer of the Smithsonian Sunburst". Smithsonian Institution Archives. Retrieved 2020-04-29.
  3. ISBN 978-1-137-50787-7. {{cite book}}: |work= ignored (help
    )
  4. ^ Sturdevant, Rick W. (Winter 2008). "From Satellite Tracking to Space Situational Awareness: The USAF and Space Surveillance: 1957 to 2007" (PDF). Air Power History. U.S. Air Force Historical Society. Retrieved 2021-06-23.{{cite magazine}}: CS1 maint: date and year (link)
  5. .
  6. .
  7. ^ "CfA Plays Central Role In Capturing Landmark Black Hole Image". www.cfa.harvard.edu/. 2019-04-09. Retrieved 2020-04-27.
  8. ^ a b c d e f "SAO Directors: 1834 - Present". Smithsonian Astrophysical Observatory. Retrieved 2015-09-03.
  9. ^ "Charles Alcock Named Director of the Harvard-Smithsonian Center for Astrophysics". Harvard-Smithsonian Center for Astrophysics. Retrieved 2015-09-17.
  10. ^ "Lisa Kewley Named Director of the Center for Astrophysics | Harvard & Smithsonian". 2022-03-14. Retrieved 2022-08-16.

External links

42°22′53″N 71°07′42″W / 42.38146°N 71.12837°W / 42.38146; -71.12837