Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

Solar Rotation Determined from Thomas Harriot's Sunspot Observations of 1611 to 1613

Richard B. Herr
Science
New Series, Vol. 202, No. 4372 (Dec. 8, 1978), pp. 1079-1081
Stable URL: http://www.jstor.org/stable/1747843
Page Count: 3
  • More info
  • Cite this Item
Solar Rotation Determined from Thomas Harriot's Sunspot Observations of 1611 to 1613
Preview not available

Abstract

In 1612 the sun's mean sidereal rotation rate was only 13.3° per day based on a series of 199 unpublished drawings by Harriot. By comparison with the rates in 1625 to 1626 and 1642 to 1644 it appears that the solar rotation was accelerating significantly in the cycles leading up to the Maunder minimum.

Page Thumbnails

  • Thumbnail: Page 
1079
    1079
  • Thumbnail: Page 
1080
    1080
  • Thumbnail: Page 
1081
    1081