Star B, a orange - red dwarf with a relatively calm chromosphere and acoustic p -
wave mode oscillations, is an easier target for detecting wobbles from terrestrial planets, possibly within only three years of «high cadence» observations for a 1.8 Earth - mass planet (more from New Scientist and Guedes et al, 2008).
Moreover, 370 years of tropical cyclone data from the Lesser Antilles (the eastern Caribbean island chain that bisects the main development region for landfalling U.S. hurricanes) show no long - term trend in either power or frequency but a 50 - to 70 - year
wave pattern associated with the Atlantic Multidecadal
Oscillation, a
mode of natural climate variability.