SAGE Reference - Encyclopedia of Time: Science, Philosophy, Theology, & Culture

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Sunspots, Cycle of

In: Encyclopedia of Time: Science, Philosophy, Theology, & Culture
Edited by: H. James Birx
Subject:Time Studies

Sunspots are areas of the sun that appear relatively dark when viewed by astronomers using special techniques. These regions are approximately 2500°F cooler than the rest of the photosphere, which gives them their darker appearance. Sunspots have strong magnetic activity that ...

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  Birx, H. J. (2009). Sunspots, cycle of. In Encyclopedia of time: Science, philosophy, theology, & culture (Vol. 1, pp. 1211-1211). SAGE Publications, Inc., https://dx.doi.org/10.4135/9781412963961.n519
  
  Birx, H. J. "Sunspots, Cycle of." In Encyclopedia of Time: Science, Philosophy, Theology, & Culture, edited by Birx, H. James., 1211-1211. Thousand Oaks, CA: SAGE Publications, Inc., 2009. https://dx.doi.org/10.4135/9781412963961.n519.
  
  Birx, H. J. 2009. Sunspots, Cycle of. In: H. J. Birx Editor, 2009. Encyclopedia of Time: Science, Philosophy, Theology, & Culture, Thousand Oaks, CA: SAGE Publications, Inc. pp. 1211 Available at: <https://dx.doi.org/10.4135/9781412963961.n519> [Accessed 25 May 2022].
  
  Birx, H. J. "Sunspots, Cycle of." Encyclopedia of Time: Science, Philosophy, Theology, & Culture. Edited by Vol. 1. Thousand Oaks: SAGE Publications, Inc., 2009, pp. 1211-1211. SAGE Knowledge. 25 May 2022, doi: https://dx.doi.org/10.4135/9781412963961.n519.
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