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.
Orange Dwarf Stars. 1  Lifetime: 17 - 73 billion years. 2  Evolution: early, middle. 3  Temperature: 3,500 - 5,000 Â°C. 4  Spectral Types: K. 5  Luminosity: 0.08 - 0.6. 6  Radius: 0.7 - 0.96. 7  Mass: 0.45 - 0.8. 8  Prevalence: 11%.