A catalogue of 1073 stars in the zone of north declination 55° to 60°, observed in the years 1926 and 1927, together with a discussion of the differences with the A.G.C. Helsingfors / C.H. Hins

A catalogue of 1073 stars in the zone of north declination 55° to 60°, observed in the years 1926 and 1927, together with a discussion of the differences with the A.G.C. Helsingfors / C.H. Hins