sunspot period
Look at other dictionaries:
sunspot cycle — noun or sunspot period : the time between maxima in the varying numbers of sunspots averaging about 11 years but sometimes being many years shorter or longer * * * Astron. the cycle, averaging in duration slightly more than 11 years, in which the … Useful english dictionary
sunspot maximum — sunspot maximum, the period during the sunspot cycle in which sunspots are most frequent … Useful english dictionary
sunspot minimum — sunspot minimum, the period during the sunspot cycle in which sunspots are least frequent … Useful english dictionary
Sunspot — A sunspot is a region on the Sun s surface (photosphere) that is marked by intense magnetic activity, which inhibits convection, forming areas of reduced surface temperature. They can be visible from Earth without the aid of a telescope. Although … Wikipedia
Henry Helm Clayton — (* 12. März 1861 in Murfreesboro, Tennessee; † 26. Oktober 1946 in Canton, Massachusetts) war ein US amerikanischer Meteorologe. Inhaltsverzeichnis 1 Leben und Leistung 2 Schriften (Auswahl) … Deutsch Wikipedia
sun — sunlike, adj. /sun/, n., v., sunned, sunning. n. 1. (often cap.) the star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance from the earth is about 93… … Universalium
Solar variation — Solar variations are changes in the amount of solar radiation emitted by the Sun. There are periodic components to these variations, the principal one being the 11 year solar cycle (or sunspot cycle), as well as aperiodic fluctuations. Solar… … Wikipedia
David Cass — For the British footballer, see David Cass (footballer). David Cass Born January 19, 1937(1937 01 19) Honululu, Hawai … Wikipedia
Maunder Minimum — The Maunder minimum in a 400 year history of sunspot numbers The Maunder Minimum (also known as the prolonged sunspot minimum) is the name used for the period roughly spanning 1645 to 1715 when sunspots became exceedingly rare, as noted by solar… … Wikipedia
Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun … Wikipedia
