The Rotation of Sunspots During Activity Cycle 22

Author: Suzuki M.  

Publisher: Springer Publishing Company

ISSN: 0038-0938

Source: Solar Physics, Vol.178, Iss.2, 1998-03, pp. : 259-265

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Abstract

The solar rotation rate derived from the measurements of daily sunspot positions during activity cycle 22 (1988–1996) are presented. The averaged differential rotation is nearly symmetric with respect to the equator. The comparisons of our measurement with those for previous cycles show that the equatorial rotation rate gradually increases from cycle 18 to 22.