Posted by Ilpo Virtanen | April 30, 2025 | Useful Resources
A scanned version of R. Howard, V. Bumba, S.F. Smith: 1967, “Atlas of Solar Magnetic Fields: August 1959-June 1966”, Pub. 626, Carnegie Institute of Washington, Washington, D.C. is now available at DOI: 10.25668/ycx1-z624. The dataset includes synoptic maps of the magnetic fields and H-alpha drawings for Carrington Rotations 1417-1509 as images in png format. The data were scanned by Dr. Ilpo Virtanen and Mr. Olli Koivusaari