English: Comet Arend–Roland (C/1956 R1) on a 24-inch Zeiss reflector, 16-minute exposure on Kodak 103a-O plate, covering 3500–5000 Å, on 4.967 May 1957.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
Uploaded a work by Donn, Bertram; Rahe, Juergen; Brandt, John C. from [https://ntrs.nasa.gov/search.jsp?R=19700002956&qs=N%3D0%26DocumentID%3D19700002956 Atlas of drawings and photographs of comets] page 118 with UploadWizard
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):