The Sun, recorded at the wavelength, during solar cycle 21 (28 April 1980).Sunspot dataStart dateMarch 1976End dateSeptember 1986Duration (years)10.5Max count232.9Max count monthDecember 1979Min count17.8Spotless days273Cycle chronologyPrevious cycle(1964-1976)Next cycle(1986-1996)Solar cycle 21 was the 21st since 1755, when extensive recording of solar activity began. The solar cycle lasted 10.5 years, beginning in March 1976 and ending in September 1986. The maximum smoothed sunspot number observed during the solar cycle was 232.9, in December 1979, and the starting minimum was 17.8. During the minimum transit from solar cycle 21 to 22, there were a total of 273 days with no sunspots. The largest solar flare of this cycle (X15) occurred on July 11, 1978.This solar cycle marked the beginning of systematic monitoring of the from space. See also.References.
We do currently allow Alpha/Beta threads for F2P games. On that note though, the Alpha/Beta has to be acquirable through abnormal means in some way. 
Only post games that normally have a price that are temporarily free, but are kept forever.
Jun 27, 2016 The 21 Watt Rollable Solar Panel is lightweight, durable and extremely portable. The solar panel is fully waterproof and constructed with marine grade connectors to provide a portable solar solution for any wet environment. Unmatched durability allows for use in even the harshest environments and a panel that works even after a portion is damaged.