Daily relative sunspot numbers 1818-1848
Subtitle: reconstruction of observations
By: V. Letfus.
Series: Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic ;; publication no. 85; Publications of the Astronomical Institute of the Academy of Sciences of the Czech Republic ;; no. 85.
Publisher: Astronomical Institute of the Academy of Sciences of the Czech Republic]
Published: 1996
Place of publication: [Prague
Language: eng
Subjects: Sunspots -- Observations.
Genres: Observations.
Notes: Includes bibliographical references (p. 5).
Cover title.