BOSTON â President Obama signed an executive order on Monday requiring federal contractors to provide up to seven days of paid sick leave a year, even as he accused Republican congressional leaders of endangering the economy and Republican presidential candidates of undercutting American workers.OSTON â President Obama signed an executive order on Monday requiring federal contractors to provide up to seven days of paid sick leave a year, even as he accused Republican congressional leaders of endangering the economy and Republican presidential candidates of undercutting American workers.
A dwarf star is a star of relatively small size and low luminosity. 1  Most main sequence stars are dwarf stars. The term was originally coined in 1906 when the Danish astronomer Ejnar Hertzsprung noticed that the reddest starsâclassified as K and M in the Harvard scheme could be divided into two distinct groups.
Red Dwarf Star. Red dwarf stars are the most common kind of stars in the Universe. These are main sequence stars but they have such low mass that theyâre much cooler than stars like our Sun. They have another advantage.ed Dwarf Star. Red dwarf stars are the most common kind of stars in the Universe. These are main sequence stars but they have such low mass that theyâre much cooler than stars like our Sun. They have another advantage.