What is the average time of one complete sunspot cycle

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Reference no: EM133206212

Assignment: Rutgers Newark Astronomy Worksheet

Photographs of the sun show dark areas on its surface. These spots are believed to be due to solar storms, areas of cooler gases on the surface. The number and pattern of these spots change with time. When the data collected over many years are graphed, a pattern emerges.

AVERAGE ANNUAL SUNSPOT NUMBERS

YEAR	NUMBER OF SUNSPOTS	YEAR	NUMBER OF SUNSPOTS
1943	16	1968	106
1944	10	1969	105
1945	31	1970	105
1946	93	1971	67
1947	151	1972	69
1948	136	1973	38
1949	135	1974	34
1950	84	1975	16
1951	69	1976	13
1952	30	1977	27
1953	13	1978	93
1954	4	1979	155
1955	38	1980	146
1956	141	1981	134
1957	176	1982	116
1958	185	1983	72
1959	158	1984	46
1960	112	1985	18
1961	54	1986	13
1962	38	1987	29
1963	28	1988	50
1964	10	1989	145
1965	15	1990	155
1966	47	1991	150
1967	94	1992	140

Using the data given, graph the number of sunspots in the years from 1943 to 1992 using excel and attach the graph to the worksheet, then answer the following questions based on that graph

A. Each peak on the graph represents a sunspot maximum. In which years do these maxima occur?

B. According to the data graphed, during which year did the last maximum occur?

C. What is the average time span (to the nearest tenth of a year) between maxima?

D. What is the average time span (to the nearest tenth of a year) between minima?

E. What is the average time of one complete sunspot cycle?

F. Predict when the next maximum will occur after the last one plotted on your graph. -Use your answers to questions 4 and 5 to assist you on this question.

G. Predict when the next minimum will occur after the last one plotted on your graph. Use your answer to question 6 to assist you on this question.

H. Extrapolate this graph at its present rate to determine approximately how many sunspots will occur in the year that you will be graduated from SPC.

Reference no: EM133206212

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