Sun…is a hot shot full of energy! Sun is located at the very center of the Solar System. No wonder he has such a big ego, but who can blame him? The whole solar system literally revolves around him!I’m a real hottie! The temperature at my center is a sizzling 28,500° F, and on my surface it is 10,340° F. I am the star located at the center of your Solar System, but I am just one of an estimated 200-400 billion stars orbiting within our Milky Way Galaxy. There may be as many as 200 billion galaxies, which means that your Sun is only one out of 80,000,000,000,000 stars!I am composed mostly of hydrogen and helium with trace amounts of other elements. All my energy is produced in my core by nuclear fusion. This energy travels to the surface and is then emitted as visible light, which reaches the Earth, 93,000,000 miles away, about 8 minutes later, and as the heat that keeps our planet Features:Height of toy seated is approximately 9 inchesContent: Polyester FiberConforms to all EU and US Consumer Product Safety Commission Toy RegulationsRated "0+" . . . Appropriate for children of all agesCare. Spot clean with mild detergent and cold water, but toy may be machine washed in cold water, gentle cycle, if needed. Best to dry at low or no heat in a pillowcase or similar to reduce risk of scratching "eyes." Did you know that the sun has cycles? When solar activity (such as sunspot count) is high, the Sun is likely in a "solar maximum" cycle and when activity is low it is a "solar minimum". The cycle changes nearly every 11 years. Astronomers at Lowell Observatory also study these cycles.Thirty years ago, stimulated by the new knowledge that the Sun’s brightness variations over the 11-year solar cycle were less than 0.1 percent, Wes Lockwood, Brian Skiff, and their colleagues began a systematic photometric study of the small brightness fluctuations of sunlike stars of various ages. Using the 21-inch telescope and a dedicated photometer, Brian Skiff observed several dozen sunlike stars for 16 consecutive seasons, finding that a majority of sunlike stars have detectable year-to-year variations from as small as 0.3 percent to several percent; (2) the amount of variability decreases with increasing stellar age. Wes, Jeff Hall, Brian Skiff, and Len Bright have also observed these stars spectroscopically since 1994 using Lowell’s Solar-Stellar Spectrograph, an instrument fed by an optical fiber from a solar feed and from the 1.1-m J. S. Hall telescope at Anderson Mesa. It is intended to characterize the magnetic activity of these stars and the Sun on the timescale of the 11-year solar cycle.We can observe stars to better understand our own Sun, exploring its variability and its effects on Earth’s environment and climate.Source: https://lowell.edu
