William Browner, Ast. Astronomer at the Naval Obs. looking thru 25 inch reflectuary teles.

 

• Harris & Ewing, photographer
• [1936 or 1937]
• https://www.loc.gov/item/2016887786/
  

Naval observatory transit telescope which observes the "Clock Stars" [...] secure[?] the time[?]

 

• [between 1909 and 1919]
• https://www.loc.gov/item/2016821018/
  

The Crossley Reflector - a wonderful mirror of the stars - under small dome, Lick Observatory, Mt. Hamilton, California

 

c1902.

https://www.loc.gov/item/2018646182/

Prof. Hall of Naval Observatory with 26 inch telescope, [Washington, D.C.], 8/18/24

 

https://www.loc.gov/item/2016849382/

Dr. David Todd, Georgetown Observatory, 8/21/24

 

https://www.loc.gov/item/2016838239/

McDonald Observatory near Fort Davis, Texas

 

1939.

https://www.loc.gov/item/2017783206/

Allegheny Observatory, Riverview Park, Pittsburgh, Pa.

 

1905-10.

https://www.loc.gov/item/2016814614/

Observatory, Greenwich, England

 

1904.

https://www.loc.gov/item/2019637858/

U.S. Naval Observatory, Washington, D.C.

 

c1904.

https://www.loc.gov/item/96510988/

NAVAL OBSERVATORY. TIME BROADCASTING INSTRUMENTS

 

1917.

https://www.loc.gov/item/2016866542/

Lick Observatory, Mt. Hamilton, Cal.

 

c1902.

https://www.loc.gov/item/2008678174/

Observatory, Amherst College

 

c1908.

https://www.loc.gov/item/2016813969/

Observatory, Harvard College

 

c1900.

https://www.loc.gov/item/2016808394/

Naval Observatory

 

1918-20. Photograph shows equipment at the United States Naval Observatory, 3450 Massachusetts Ave., N.W., Washington, D.C.

https://www.loc.gov/item/2016819513/

Peking - ancient observatory

 

1895. Lantern slide. Hand colored.

https://www.loc.gov/item/2004707957/

Naval observatory, [Washington, D.C.]

 

1916-17. All new vintage content. I did a few science or engineering related keyword searches at Library of Congress. I try to have at least one new post every day, and sometimes two. 100 posts will fit in the sidebar each month so two posts a day is only 60.

https://www.loc.gov/item/2016825844/