Free Access

Table 2

LS period analysis in Mount Wilson data.

Time span Number of nights Period Probability

1967–1970 37 too few data n.a.
1971–1973 33 too few data n.a.
1974–1976 45 115 day <0.999
1977–1979 37 too few data n.a.
1980–1982 107 114 day >0.9999
1983–1985 283 85,112 day >0.9999
1986–1988 196 87 day, 120 day >0.9999
1989–1991 53 110 day <0.997
1992–1994 166 90, 118 day >0.9999
1995–1997 161 123 day >0.9999
1998–2000 131 90, 121 day >0.9999

Notes. We list the observing seasons, the total number of available nights, the identified periods and an estimate of their significance.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.