Gustav Spörer — Friederich Wilhelm Gustav Spörer (October 23 1822 ndash; July 7 1895) was a German astronomer.He is noted for his studies of sunspots and sunspot cycles. In this regard his name is often mentioned together with Edward Maunder. Spörer was first to … Wikipedia
Scientific phenomena named after people — This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym. NOTOC A* Abderhalden ninhydrin reaction Emil Abderhalden * Abney effect, Abney s law of additivity William de… … Wikipedia
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
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
Timeline of solar astronomy — 9th century * 850 Ahmad ibn Muhammad ibn Kathīr al Farghānī (Alfraganus) gives values for the obliquity of the ecliptic, the precessional movement of the apogees of the Sun 10th century * 900 929 Muhammad ibn Jābir al Harrānī al Battānī… … Wikipedia
Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun … Wikipedia
Richard Christopher Carrington — Infobox Scientist name = Richard Christopher Carrington box width = image width = 150px caption = Richard Christopher Carrington birth date = May 26 1826 birth place = Chelsea, London, England death date = November 27 1875 death place = Churt,… … Wikipedia
Cross-race effect — Race Classification Race (classification of humans) Genetics … Wikipedia
Abstinence — • Includes information about old and new testament fasting as well as church laws Catholic Encyclopedia. Kevin Knight. 2006. Abstinence Abstinence … Catholic encyclopedia
Cherry Creek High School — Coordinates: 39°37′50″N 104°52′48″W / 39.6305°N 104.8800°W / 39.6305; 104.8800 … Wikipedia
