A four-channel infrared pinhole photometer for solar intensity observations
By: by Fritz Albregtsen
Series: Report / Institute of Theoretical Astrophysics Blindern-Oslo -- no. 51; Report (Universitetet i Oslo. Institutt for teoretisk astrofysikk) -- no. 51
Publisher: Studentsamskipnaden i Oslo, Servicescentralen
Published: 1979
Place of publication: Oslo
Language: eng
Number of pages: 20
Subjects: Spectrophotometer; Solar Spectrum; Sunspots; Observations
Other titles: Infrared pinhole photometer for solar intensity observations
Notes: Bibliography: p. 20.