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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).
sdstate .edu. South Dakota State University ( SDSU or SD State) is a public land-grant research university in Brookings, South Dakota. Founded in 1881, it is the state's largest and most comprehensive university and the oldest continually operating university in South Dakota. [4] The university is governed by the South Dakota Board of Regents ...
Solar cycle 24. Solar cycle 24 is the most recently completed solar cycle, the 24th since 1755, when extensive recording of solar sunspot activity began. [1] [2] It began in December 2008 with a minimum smoothed sunspot number of 2.2, [3] [failed verification] and ended in December 2019. [4] Activity was minimal until early 2010.
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 ...
Website. www .usd .edu. The University of South Dakota ( USD) is a public research university in Vermillion, South Dakota. Established by the Dakota Territory legislature in 1862, 27 years before the establishment of the state of South Dakota, [5] USD is the flagship university for the state of South Dakota and the state's oldest public ...
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List of solar cycles. Solar cycles are nearly periodic 11-year changes in the Sun 's activity that are based on the number of sunspots present on the Sun's surface. The first solar cycle conventionally is said to have started in 1755. The source data are the revised International Sunspot Numbers (ISN v2.0), as available at SILSO. [1]