Medicare is a federally funded insurance program for eligible participants 65 or over. Medicare has two parts, Part A (Hospital Insurance) and Part B (Medical Insurance). Medicare does not cover 100% of all costs. CDI recommends purchasing a Medicare Supplement Insurance policy if you have traditional Medicare to help offset your health care costs. If you have questions related to Medicare, contact Medicare or your local Department of Aging (HICAP).
7. Temperatures in our universe range from about 3,500,000,000 Kelvin (a supernova) to about 3 Kelvin (space). Our Sun is a class G yellow star and has an average surface temperature of 5,600 Kelvin.
The letters across the bottom represent the spectral class of stars, or color of stars. The temperature of the stars measured across the bottom of the scale are measured in Kelvin. Zero Kelvin equals -273 degrees Celsius, -459 degrees Fahrenheit. As you can see, there are only a few categories of stars. Most stars in our universe are main sequence stars, including our sun Sol. Notice how the biggest stars are the brightest but not the hottest. The white dwarf stars are near the end of their life and losing much of their brightness but they are very hot.