Measures of positions and areas of sun spots and faculae on photographs taken at Greenwich, Dehra Dun, and Melbourne
Subtitle: with the deduced heliographic longitudes and latitudes, 1878-1881.
Publisher: Eyre and Spottiswoode
Published: 1891
Place of publication: London
Language: eng
Number of pages: 81
Subjects: Sunspots.; Longitude -- Tables.; Latitude -- Tables.; Sun -- Tables.; Sun -- Faculae.