Sunspot areas and tilt angles for solar cycles 7–10 V. Senthamizh Pavai, R. Arlt, M. Dasi-Espuig, N. A. Krivova and S. K. Solanki A&A, 584 (2015) A73 Published online: 24 November 2015 DOI: 10.1051/0004-6361/201527080