Lexic.us

Definition of Sunspot

1. Noun. A cooler darker spot appearing periodically on the sun's photosphere; associated with a strong magnetic field.

Definition of Sunspot

1. Noun. (astronomy) A region on the sun's surface with a lower temperature than its surroundings and intense magnetic activity. ¹

¹ Source: wiktionary.com

Definition of Sunspot

1. a dark spot on the surface of the sun [n -S]

Lexicographical Neighbors of Sunspot

Literary usage of Sunspot

Below you will find example usage of this term as found in modern and/or classical literature:

1. Popular Science Monthly (1906)
"In 1872 Meldrum, then director of the meteorological observatory at Mauritius, first called attention to a sunspot periodicity in rainfall and in the ..."

2. Publications of the Astronomical Society of the Pacific by Astronomical Society of the Pacific (1901)
"The recent sunspot cycle has been of unusual duration, though, according to data revised by Professor ... N Large sunspot, Oct 8, 1903, 9 AM (Screen Image. ..."

3. Studies in Terrestrial Magnetism by Charles Chree (1912)
"CHAPTER XVI NATURE OF sunspot RELATIONSHIP THE range of the diurnal inequality is not the only magnetic quantity that varies with sunspot frequency. ..."

4. Journal of the Asiatic Society of Bengal by Asiatic Society of Bengal (1884)
"Again, in those years which in the diagram are marked + , and which immediately precede the years of sunspot maximum and minimum, the order above pointed ..."

5. The Dictionary of National Biography by Sidney Lee (1908)
"and in the sunspot Area,' assigning as the length of that period 10'45 years (xxvii. 663, 1876), with a ' Note on the Bifilar Magnetometer' ..."

6. Handbook of Climatology by Julius von Hann (1903)
"Meldrum and Lockyer, in particular. h • endeavoured to prove that the sunspot period has an influence upon th* annual rainfall, the results of their ..."

7. Annals of the Astronomical Observatory of Harvard College by Harvard College Observatory (1901)
"ANNUAL TEMPERATURES AND sunspot MAXIMA AND MINIMA. near the time of ... sunspot Minimum. 1853-59 45.2 44.5 44.4 43.1 43.8 43.4 43.7 1864-70 44.9 44.9 44.5 ..."

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