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The Sunspot Solar Observatory (SSO) is an astronomical observatory designed for the study of the Sun. The observatory is operated by New Mexico State University (NMSU) and the U.S. National Solar Observatory (NSO). It is split between operations at the telescope facility at Sunspot, New Mexico, and data and management at the Department of ...
Sunspot number is correlated with the intensity of solar radiation over the period since 1979, when satellite measurements became available. The variation caused by the sunspot cycle to solar output is on the order of 0.1% of the solar constant (a peak-to-trough range of 1.3 W·m −2 compared with 1366 W·m −2 for the average solar constant).
A drawing of a sunspot in the Chronicles of John of Worcester. The earliest known record of a sunspot drawing was in 1128, by John of Worcester.. In the third year of Lothar, emperor of the Romans, in the twenty-eighth year of King Henry of the English...on Saturday, 8 December, there appeared from the morning right up to the evening two black spheres against the sun.
Sunspot, New Mexico. / 32.791; -105.818. Sunspot is an unincorporated community in the Sacramento Mountains in the Lincoln National Forest in Otero County, New Mexico, United States, [1] [2] about 18 miles (29 km) south of Cloudcroft. Its elevation is 9,186 feet (2,800 m). The Sunspot Solar Observatory and Apache Point Observatory are located ...
Solar cycle 18. Solar cycle 18 was the eighteenth solar cycle since 1755, when extensive recording of solar sunspot activity began. [1] [2] The solar cycle lasted 10.2 years, beginning in February 1944 and ending in April 1954. The maximum smoothed sunspot number observed during the solar cycle was 218.7 (May 1947), and the starting minimum was ...
Sun SPOT. Sun SPOT (Sun Small Programmable Object Technology) was a sensor node for a wireless sensor network developed by Sun Microsystems announced in 2007. The device used the IEEE 802.15.4 standard for its networking, and unlike other available sensor nodes, used the Squawk Java virtual machine . After the acquisition of Sun Microsystems by ...
Solar cycle 11 (1867-1878) Drawing of the Great Sunspot of 1865. Solar cycle 10 was the tenth solar cycle since 1755, when extensive recording of solar sunspot activity began. [1] [2] The solar cycle lasted 11.3 years, beginning in December 1855 and ending in March 1867. The maximum smoothed sunspot number observed during the solar cycle was ...
Spörer's law. In solar physics, Spörer's law is an empirical law for the variation of heliographic latitudes at which solar active regions form during a solar cycle. [1] It was discovered by the English astronomer Richard Christopher Carrington around 1861. [2] Carrington's work was refined by the German astronomer Gustav Spörer .